diff --git a/org.etsi.mts.tdl/model/TypesXMI.xsd b/org.etsi.mts.tdl/model/TypesXMI.xsd
new file mode 100644
index 0000000000000000000000000000000000000000..7d93ab1686b025b1bf73a9c02fc345db4db20d34
--- /dev/null
+++ b/org.etsi.mts.tdl/model/TypesXMI.xsd
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<xsd:schema xmlns:types="http://www.eclipse.org/uml2/5.0.0/Types" xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.eclipse.org/uml2/5.0.0/Types"/>
diff --git a/org.etsi.mts.tdl/model/XMI.xsd b/org.etsi.mts.tdl/model/XMI.xsd
new file mode 100644
index 0000000000000000000000000000000000000000..13726bad5308964f09fac39f9bb1752b0059310e
--- /dev/null
+++ b/org.etsi.mts.tdl/model/XMI.xsd
@@ -0,0 +1,132 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<xsd:schema xmlns:xmi="http://www.omg.org/XMI" xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.omg.org/XMI">
+  <xsd:attribute name="id" type="xsd:ID"/>
+  <xsd:attributeGroup name="IdentityAttribs">
+    <xsd:attribute form="qualified" name="label" type="xsd:string" use="optional"/>
+    <xsd:attribute form="qualified" name="uuid" type="xsd:string" use="optional"/>
+  </xsd:attributeGroup>
+  <xsd:attributeGroup name="LinkAttribs">
+    <xsd:attribute name="href" type="xsd:string" use="optional"/>
+    <xsd:attribute form="qualified" name="idref" type="xsd:IDREF" use="optional"/>
+  </xsd:attributeGroup>
+  <xsd:attributeGroup name="ObjectAttribs">
+    <xsd:attributeGroup ref="xmi:IdentityAttribs"/>
+    <xsd:attributeGroup ref="xmi:LinkAttribs"/>
+    <xsd:attribute fixed="2.0" form="qualified" name="version" type="xsd:string" use="optional"/>
+    <xsd:attribute form="qualified" name="type" type="xsd:QName" use="optional"/>
+  </xsd:attributeGroup>
+  <xsd:complexType name="XMI">
+    <xsd:choice maxOccurs="unbounded" minOccurs="0">
+      <xsd:any processContents="strict"/>
+    </xsd:choice>
+    <xsd:attributeGroup ref="xmi:IdentityAttribs"/>
+    <xsd:attributeGroup ref="xmi:LinkAttribs"/>
+    <xsd:attribute form="qualified" name="type" type="xsd:QName" use="optional"/>
+    <xsd:attribute fixed="2.0" form="qualified" name="version" type="xsd:string" use="required"/>
+  </xsd:complexType>
+  <xsd:element name="XMI" type="xmi:XMI"/>
+  <xsd:complexType name="PackageReference">
+    <xsd:choice maxOccurs="unbounded" minOccurs="0">
+      <xsd:element name="name" type="xsd:string"/>
+      <xsd:element name="version" type="xsd:string"/>
+    </xsd:choice>
+    <xsd:attributeGroup ref="xmi:ObjectAttribs"/>
+    <xsd:attribute name="name" type="xsd:string" use="optional"/>
+  </xsd:complexType>
+  <xsd:element name="PackageReference" type="xmi:PackageReference"/>
+  <xsd:complexType name="Model">
+    <xsd:complexContent>
+      <xsd:extension base="xmi:PackageReference"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Model" type="xmi:Model"/>
+  <xsd:complexType name="Import">
+    <xsd:complexContent>
+      <xsd:extension base="xmi:PackageReference"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Import" type="xmi:Import"/>
+  <xsd:complexType name="MetaModel">
+    <xsd:complexContent>
+      <xsd:extension base="xmi:PackageReference"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="MetaModel" type="xmi:MetaModel"/>
+  <xsd:complexType name="Documentation">
+    <xsd:choice maxOccurs="unbounded" minOccurs="0">
+      <xsd:element name="contact" type="xsd:string"/>
+      <xsd:element name="exporter" type="xsd:string"/>
+      <xsd:element name="exporterVersion" type="xsd:string"/>
+      <xsd:element name="longDescription" type="xsd:string"/>
+      <xsd:element name="shortDescription" type="xsd:string"/>
+      <xsd:element name="notice" type="xsd:string"/>
+      <xsd:element name="owner" type="xsd:string"/>
+    </xsd:choice>
+    <xsd:attributeGroup ref="xmi:ObjectAttribs"/>
+    <xsd:attribute name="contact" type="xsd:string" use="optional"/>
+    <xsd:attribute name="exporter" type="xsd:string" use="optional"/>
+    <xsd:attribute name="exporterVersion" type="xsd:string" use="optional"/>
+    <xsd:attribute name="longDescription" type="xsd:string" use="optional"/>
+    <xsd:attribute name="shortDescription" type="xsd:string" use="optional"/>
+    <xsd:attribute name="notice" type="xsd:string" use="optional"/>
+    <xsd:attribute name="owner" type="xsd:string" use="optional"/>
+  </xsd:complexType>
+  <xsd:element name="Documentation" type="xmi:Documentation"/>
+  <xsd:complexType name="Extension">
+    <xsd:choice maxOccurs="unbounded" minOccurs="0">
+      <xsd:any processContents="lax"/>
+    </xsd:choice>
+    <xsd:attributeGroup ref="xmi:ObjectAttribs"/>
+    <xsd:attribute name="extender" type="xsd:string" use="optional"/>
+    <xsd:attribute name="extenderID" type="xsd:string" use="optional"/>
+  </xsd:complexType>
+  <xsd:element name="Extension" type="xmi:Extension"/>
+  <xsd:complexType name="Difference">
+    <xsd:choice maxOccurs="unbounded" minOccurs="0">
+      <xsd:element name="target">
+        <xsd:complexType>
+          <xsd:choice maxOccurs="unbounded" minOccurs="0">
+            <xsd:any processContents="skip"/>
+          </xsd:choice>
+          <xsd:anyAttribute processContents="skip"/>
+        </xsd:complexType>
+      </xsd:element>
+      <xsd:element name="difference" type="xmi:Difference"/>
+      <xsd:element name="container" type="xmi:Difference"/>
+    </xsd:choice>
+    <xsd:attributeGroup ref="xmi:ObjectAttribs"/>
+    <xsd:attribute name="target" type="xsd:IDREFS" use="optional"/>
+    <xsd:attribute name="container" type="xsd:IDREFS" use="optional"/>
+  </xsd:complexType>
+  <xsd:element name="Difference" type="xmi:Difference"/>
+  <xsd:complexType name="Add">
+    <xsd:complexContent>
+      <xsd:extension base="xmi:Difference">
+        <xsd:attribute name="position" type="xsd:string" use="optional"/>
+        <xsd:attribute name="addition" type="xsd:IDREFS" use="optional"/>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Add" type="xmi:Add"/>
+  <xsd:complexType name="Replace">
+    <xsd:complexContent>
+      <xsd:extension base="xmi:Difference">
+        <xsd:attribute name="position" type="xsd:string" use="optional"/>
+        <xsd:attribute name="replacement" type="xsd:IDREFS" use="optional"/>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Replace" type="xmi:Replace"/>
+  <xsd:complexType name="Delete">
+    <xsd:complexContent>
+      <xsd:extension base="xmi:Difference"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Delete" type="xmi:Delete"/>
+  <xsd:complexType name="Any">
+    <xsd:choice maxOccurs="unbounded" minOccurs="0">
+      <xsd:any processContents="skip"/>
+    </xsd:choice>
+    <xsd:anyAttribute processContents="skip"/>
+  </xsd:complexType>
+</xsd:schema>
diff --git a/org.etsi.mts.tdl/model/tdlXMI.xsd b/org.etsi.mts.tdl/model/tdlXMI.xsd
new file mode 100644
index 0000000000000000000000000000000000000000..bb93c2d6cf1f866c0bfef0b628caa707fffe8f38
--- /dev/null
+++ b/org.etsi.mts.tdl/model/tdlXMI.xsd
@@ -0,0 +1,4454 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<xsd:schema xmlns:tdl="http://www.etsi.org/spec/TDL/1.5.1" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.etsi.org/spec/TDL/1.5.1">
+  <xsd:import namespace="http://www.omg.org/XMI" schemaLocation="platform:/plugin/org.eclipse.emf.ecore/model/XMI.xsd"/>
+  <xsd:simpleType name="UnassignedMemberTreatment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:restriction base="xsd:NCName">
+      <xsd:enumeration value="AnyValue"/>
+      <xsd:enumeration value="AnyValueOrOmit"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+  <xsd:simpleType name="ParameterKind">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:restriction base="xsd:NCName">
+      <xsd:enumeration value="In"/>
+      <xsd:enumeration value="Out"/>
+      <xsd:enumeration value="Exception"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+  <xsd:simpleType name="GateTypeKind">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:restriction base="xsd:NCName">
+      <xsd:enumeration value="Message"/>
+      <xsd:enumeration value="Procedure"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+  <xsd:simpleType name="ComponentInstanceRole">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:restriction base="xsd:NCName">
+      <xsd:enumeration value="SUT"/>
+      <xsd:enumeration value="Tester"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+  <xsd:simpleType name="TimeLabelUseKind">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:restriction base="xsd:NCName">
+      <xsd:enumeration value="Last"/>
+      <xsd:enumeration value="Previous"/>
+      <xsd:enumeration value="First"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+  <xsd:complexType abstract="true" name="Element">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:choice maxOccurs="unbounded" minOccurs="0">
+      <xsd:element name="comment" type="tdl:Comment">
+        <xsd:annotation>
+          <xsd:documentation>
+            <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+          </xsd:documentation>
+        </xsd:annotation>
+      </xsd:element>
+      <xsd:element name="annotation" type="tdl:Annotation">
+        <xsd:annotation>
+          <xsd:documentation>
+            <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+          </xsd:documentation>
+        </xsd:annotation>
+      </xsd:element>
+      <xsd:element ref="xmi:Extension"/>
+    </xsd:choice>
+    <xsd:attribute ref="xmi:id"/>
+    <xsd:attributeGroup ref="xmi:ObjectAttribs"/>
+    <xsd:attribute name="name" type="xsd:string">
+      <xsd:annotation>
+        <xsd:documentation>
+          <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+        </xsd:documentation>
+      </xsd:annotation>
+    </xsd:attribute>
+  </xsd:complexType>
+  <xsd:element name="Element" type="tdl:Element">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Comment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="commentedElement" type="tdl:Element">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="body" type="xsd:string" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="commentedElement" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Comment" type="tdl:Comment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Annotation">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="key" type="tdl:AnnotationType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="annotatedElement" type="tdl:Element">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="value" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="key" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="annotatedElement" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Annotation" type="tdl:Annotation">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="AnnotationType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="extension" type="tdl:Extension">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="AnnotationType" type="tdl:AnnotationType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="PackageableElement">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:NamedElement"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="PackageableElement" type="tdl:PackageableElement">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="NamedElement">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="NamedElement" type="tdl:NamedElement">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Extension">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="extending" type="tdl:PackageableElement">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="extending" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Extension" type="tdl:Extension">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Package">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:NamedElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="packagedElement" type="tdl:PackageableElement">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="import" type="tdl:ElementImport">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="nestedPackage" type="tdl:Package">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Package" type="tdl:Package">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ElementImport">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="importedElement" type="tdl:PackageableElement">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="importedPackage" type="tdl:Package">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="importedElement" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="importedPackage" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ElementImport" type="tdl:ElementImport">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TestObjective">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="objectiveURI" nillable="true" type="xsd:string">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="description" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TestObjective" type="tdl:TestObjective">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Constraint">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="quantifier" type="tdl:LiteralValueUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="type" type="tdl:ConstraintType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="type" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Constraint" type="tdl:Constraint">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="LiteralValueUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:StaticDataUse">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="dataType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="value" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="intValue" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="boolValue" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="dataType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="LiteralValueUse" type="tdl:LiteralValueUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="StaticDataUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DataUse"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="StaticDataUse" type="tdl:StaticDataUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="DataUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="argument" type="tdl:ParameterBinding">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="reduction" type="tdl:MemberReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="DataUse" type="tdl:DataUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ParameterBinding">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="dataUse" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="parameter" type="tdl:Parameter">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="parameter" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ParameterBinding" type="tdl:ParameterBinding">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="Parameter">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:NamedElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="dataType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="dataType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Parameter" type="tdl:Parameter">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="DataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:MappableDataElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="constraint" type="tdl:Constraint">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="DataType" type="tdl:DataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="MappableDataElement">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="MappableDataElement" type="tdl:MappableDataElement">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="MemberReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="member" type="tdl:Member">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="collectionIndex" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="member" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="MemberReference" type="tdl:MemberReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Member">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Parameter">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="constraint" type="tdl:Constraint">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="isOptional" type="xsd:string" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Member" type="tdl:Member">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ConstraintType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ConstraintType" type="tdl:ConstraintType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Foundation.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="DataInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:MappableDataElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="dataType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="dataType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="DataInstance" type="tdl:DataInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="DataResourceMapping">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:attribute name="resourceURI" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="DataResourceMapping" type="tdl:DataResourceMapping">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="DataElementMapping">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="mappableDataElement" type="tdl:MappableDataElement">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="dataResourceMapping" type="tdl:DataResourceMapping">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="parameterMapping" type="tdl:ParameterMapping">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="elementURI" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="mappableDataElement" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="dataResourceMapping" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="DataElementMapping" type="tdl:DataElementMapping">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ParameterMapping">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="parameter" type="tdl:Parameter">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="parameterURI" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="parameter" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ParameterMapping" type="tdl:ParameterMapping">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="SimpleDataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DataType">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="extension" type="tdl:Extension">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="SimpleDataType" type="tdl:SimpleDataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="SimpleDataInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DataInstance"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="SimpleDataInstance" type="tdl:SimpleDataInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="StructuredDataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DataType">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="member" type="tdl:Member">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="extension" type="tdl:Extension">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="StructuredDataType" type="tdl:StructuredDataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="StructuredDataInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DataInstance">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="memberAssignment" type="tdl:MemberAssignment">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="unassignedMember" type="tdl:UnassignedMemberTreatment">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="StructuredDataInstance" type="tdl:StructuredDataInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="MemberAssignment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="member" type="tdl:Member">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="memberSpec" type="tdl:StaticDataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="member" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="MemberAssignment" type="tdl:MemberAssignment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Action">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:MappableDataElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="formalParameter" type="tdl:FormalParameter">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="body" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Action" type="tdl:Action">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="FormalParameter">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Parameter"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="FormalParameter" type="tdl:FormalParameter">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Function">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Action">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="returnType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="returnType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Function" type="tdl:Function">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="FormalParameterUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DynamicDataUse">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="parameter" type="tdl:FormalParameter">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="parameter" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="FormalParameterUse" type="tdl:FormalParameterUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="DynamicDataUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DataUse"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="DynamicDataUse" type="tdl:DynamicDataUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Variable">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:NamedElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="dataType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="dataType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Variable" type="tdl:Variable">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="FunctionCall">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DynamicDataUse">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="function" type="tdl:Function">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="function" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="FunctionCall" type="tdl:FunctionCall">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ProcedureSignature">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DataType">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="parameter" type="tdl:ProcedureParameter">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ProcedureSignature" type="tdl:ProcedureSignature">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ProcedureParameter">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Parameter">
+        <xsd:attribute name="kind" type="tdl:ParameterKind" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ProcedureParameter" type="tdl:ProcedureParameter">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="CollectionDataInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DataInstance">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="item" type="tdl:StaticDataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="CollectionDataInstance" type="tdl:CollectionDataInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="CollectionDataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DataType">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="itemType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="itemType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="CollectionDataType" type="tdl:CollectionDataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="PredefinedFunction">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="returnType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="returnType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="PredefinedFunction" type="tdl:PredefinedFunction">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="EnumDataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:SimpleDataType">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="value" type="tdl:SimpleDataInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EnumDataType" type="tdl:EnumDataType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataDefinition.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="VariableUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DynamicDataUse">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="componentInstance" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="variable" type="tdl:Variable">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="componentInstance" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="variable" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="VariableUse" type="tdl:VariableUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ComponentInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:NamedElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="type" type="tdl:ComponentType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="role" type="tdl:ComponentInstanceRole" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="type" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ComponentInstance" type="tdl:ComponentInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ComponentType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="gateInstance" type="tdl:GateInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="timer" type="tdl:Timer">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="variable" type="tdl:Variable">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="extension" type="tdl:Extension">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ComponentType" type="tdl:ComponentType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="GateInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:NamedElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="type" type="tdl:GateType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="type" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="GateInstance" type="tdl:GateInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="GateType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="dataType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="extension" type="tdl:Extension">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="kind" type="tdl:GateTypeKind" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="dataType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="GateType" type="tdl:GateType">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Timer">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:NamedElement"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Timer" type="tdl:Timer">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="OmitValue">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:SpecialValueUse"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="OmitValue" type="tdl:OmitValue">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="SpecialValueUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:StaticDataUse"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="SpecialValueUse" type="tdl:SpecialValueUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="AnyValue">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:SpecialValueUse">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="dataType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="dataType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="AnyValue" type="tdl:AnyValue">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="AnyValueOrOmit">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:SpecialValueUse"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="AnyValueOrOmit" type="tdl:AnyValueOrOmit">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="DataInstanceUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:StaticDataUse">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="dataInstance" type="tdl:DataInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="dataType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="unassignedMember" type="tdl:UnassignedMemberTreatment">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="dataInstance" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="dataType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="DataInstanceUse" type="tdl:DataInstanceUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="PredefinedFunctionCall">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DynamicDataUse">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="function" type="tdl:PredefinedFunction">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="actualParameter" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="function" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="PredefinedFunctionCall" type="tdl:PredefinedFunctionCall">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Data::DataUse.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Time">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:SimpleDataType"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Time" type="tdl:Time">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TimeLabel">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:NamedElement"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TimeLabel" type="tdl:TimeLabel">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="TimerOperation">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:AtomicBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="timer" type="tdl:Timer">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="componentInstance" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="timer" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="componentInstance" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TimerOperation" type="tdl:TimerOperation">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="AtomicBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Behaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="timeConstraint" type="tdl:TimeConstraint">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="timeLabel" type="tdl:TimeLabel">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="AtomicBehaviour" type="tdl:AtomicBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="Behaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="testObjective" type="tdl:TestObjective">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="testObjective" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Behaviour" type="tdl:Behaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TimeConstraint">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="timeConstraintExpression" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TimeConstraint" type="tdl:TimeConstraint">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TimerStart">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TimerOperation">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="period" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TimerStart" type="tdl:TimerStart">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TimerStop">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TimerOperation"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TimerStop" type="tdl:TimerStop">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TimeOut">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TimerOperation"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TimeOut" type="tdl:TimeOut">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="TimeOperation">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:AtomicBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="componentInstance" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="period" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="componentInstance" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TimeOperation" type="tdl:TimeOperation">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Wait">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TimeOperation"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Wait" type="tdl:Wait">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Quiescence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TimeOperation">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="gateReference" type="tdl:GateReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="gateReference" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Quiescence" type="tdl:Quiescence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="GateReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="component" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="gate" type="tdl:GateInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="component" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="gate" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="GateReference" type="tdl:GateReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TimeLabelUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:DynamicDataUse">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="timeLabel" type="tdl:TimeLabel">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="kind" type="tdl:TimeLabelUseKind" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="timeLabel" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TimeLabelUse" type="tdl:TimeLabelUse">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Time.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TestConfiguration">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="componentInstance" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="connection" type="tdl:Connection">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TestConfiguration" type="tdl:TestConfiguration">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Connection">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="endPoint" type="tdl:GateReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Connection" type="tdl:Connection">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TestDescription">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="testConfiguration" type="tdl:TestConfiguration">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="formalParameter" type="tdl:FormalParameter">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="behaviourDescription" type="tdl:BehaviourDescription">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="testObjective" type="tdl:TestObjective">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="isLocallyOrdered" type="xsd:string" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="testConfiguration" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="testObjective" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TestDescription" type="tdl:TestDescription">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="BehaviourDescription">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="behaviour" type="tdl:Behaviour">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="BehaviourDescription" type="tdl:BehaviourDescription">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::TestDescription.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Block">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="guard" type="tdl:LocalExpression">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="behaviour" type="tdl:Behaviour">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Block" type="tdl:Block">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="LocalExpression">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="expression" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="componentInstance" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="componentInstance" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="LocalExpression" type="tdl:LocalExpression">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="CombinedBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Behaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="periodic" type="tdl:PeriodicBehaviour">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="exceptional" type="tdl:ExceptionalBehaviour">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="CombinedBehaviour" type="tdl:CombinedBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="PeriodicBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Behaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="block" type="tdl:Block">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="period" type="tdl:LocalExpression">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="PeriodicBehaviour" type="tdl:PeriodicBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="ExceptionalBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Behaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="block" type="tdl:Block">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="guardedComponent" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="guardedComponent" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ExceptionalBehaviour" type="tdl:ExceptionalBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="AlternativeBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:MultipleCombinedBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="AlternativeBehaviour" type="tdl:AlternativeBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="MultipleCombinedBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:CombinedBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="block" type="tdl:Block">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="MultipleCombinedBehaviour" type="tdl:MultipleCombinedBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ParallelBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:MultipleCombinedBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ParallelBehaviour" type="tdl:ParallelBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="BoundedLoopBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:SingleCombinedBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="numIteration" type="tdl:LocalExpression">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="BoundedLoopBehaviour" type="tdl:BoundedLoopBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="SingleCombinedBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:CombinedBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="block" type="tdl:Block">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="SingleCombinedBehaviour" type="tdl:SingleCombinedBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="UnboundedLoopBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:SingleCombinedBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="UnboundedLoopBehaviour" type="tdl:UnboundedLoopBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ConditionalBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:MultipleCombinedBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ConditionalBehaviour" type="tdl:ConditionalBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="CompoundBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:SingleCombinedBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="CompoundBehaviour" type="tdl:CompoundBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="DefaultBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:ExceptionalBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="DefaultBehaviour" type="tdl:DefaultBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="InterruptBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:ExceptionalBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="InterruptBehaviour" type="tdl:InterruptBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Target">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="targetGate" type="tdl:GateReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="valueAssignment" type="tdl:ValueAssignment">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="targetGate" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Target" type="tdl:Target">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ValueAssignment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="variable" type="tdl:Variable">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="parameter" type="tdl:Parameter">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="variable" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="parameter" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ValueAssignment" type="tdl:ValueAssignment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="OptionalBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:SingleCombinedBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="OptionalBehaviour" type="tdl:OptionalBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::CombinedBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="VerdictAssignment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:AtomicBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="verdict" type="tdl:StaticDataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="VerdictAssignment" type="tdl:VerdictAssignment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Assertion">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:ActionBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="otherwise" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="condition" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Assertion" type="tdl:Assertion">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="ActionBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:AtomicBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="componentInstance" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="componentInstance" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ActionBehaviour" type="tdl:ActionBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Stop">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:AtomicBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Stop" type="tdl:Stop">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Break">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:AtomicBehaviour"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Break" type="tdl:Break">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Assignment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:ActionBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="variable" type="tdl:VariableUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="expression" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Assignment" type="tdl:Assignment">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="InlineAction">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:ActionBehaviour">
+        <xsd:attribute name="body" type="xsd:string" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="InlineAction" type="tdl:InlineAction">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ActionReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:ActionBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="action" type="tdl:Action">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="argument" type="tdl:ParameterBinding">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="action" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ActionReference" type="tdl:ActionReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TestDescriptionReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:AtomicBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="testDescription" type="tdl:TestDescription">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="componentInstanceBinding" type="tdl:ComponentInstanceBinding">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="argument" type="tdl:ParameterBinding">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="testDescription" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TestDescriptionReference" type="tdl:TestDescriptionReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ComponentInstanceBinding">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="formalComponent" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="actualComponent" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="formalComponent" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="actualComponent" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ComponentInstanceBinding" type="tdl:ComponentInstanceBinding">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Interaction">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:AtomicBehaviour">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="target" type="tdl:Target">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="sourceGate" type="tdl:GateReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="sourceGate" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Interaction" type="tdl:Interaction">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ProcedureCall">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Interaction">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="argument" type="tdl:ParameterBinding">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="replyTo" type="tdl:ProcedureCall">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="signature" type="tdl:ProcedureSignature">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="replyTo" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="signature" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ProcedureCall" type="tdl:ProcedureCall">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Message">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Interaction">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="argument" type="tdl:DataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="isTrigger" type="xsd:string" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Message" type="tdl:Message">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::TestBehaviour::AtomicBehaviour.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="StructuredTestObjective">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TestObjective">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="initialConditions" type="tdl:InitialConditions">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="expectedBehaviour" type="tdl:ExpectedBehaviour">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="finalConditions" type="tdl:FinalConditions">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="picsReference" type="tdl:PICSReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="configuration" type="tdl:TestConfiguration">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="configuration" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="StructuredTestObjective" type="tdl:StructuredTestObjective">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="InitialConditions">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="conditions" type="tdl:EventSequence">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="InitialConditions" type="tdl:InitialConditions">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="EventSequence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="events" type="tdl:EventOccurrence">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EventSequence" type="tdl:EventSequence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="EventOccurrence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="timeConstraint" type="tdl:TimeConstraint">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="timeLabel" type="tdl:TimeLabel">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EventOccurrence" type="tdl:EventOccurrence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ExpectedBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="whenClause" type="tdl:EventSequence">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="thenClause" type="tdl:EventSequence">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ExpectedBehaviour" type="tdl:ExpectedBehaviour">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="FinalConditions">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="conditions" type="tdl:EventSequence">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="FinalConditions" type="tdl:FinalConditions">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="PICSReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="pics" type="tdl:PICS">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="pics" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="PICSReference" type="tdl:PICSReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="PICS">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="PICS" type="tdl:PICS">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Entity">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Entity" type="tdl:Entity">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Event">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Event" type="tdl:Event">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="EventOccurrenceSpecification">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:EventOccurrence">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="entityReference" type="tdl:EntityReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="eventReference" type="tdl:EventReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="oppositeEntityReference" type="tdl:EntityReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="eventArgument" type="tdl:Value">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EventOccurrenceSpecification" type="tdl:EventOccurrenceSpecification">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="EntityReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="entity" type="tdl:Entity">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="component" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="entity" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="component" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EntityReference" type="tdl:EntityReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="EventReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="event" type="tdl:Event">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="event" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EventReference" type="tdl:EventReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="Value">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Value" type="tdl:Value">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="EventArgument">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EventArgument" type="tdl:EventArgument">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="DataReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Value">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="content" type="tdl:StaticDataUse">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="DataReference" type="tdl:DataReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="Content">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="value" type="tdl:Value">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="content" type="tdl:Content">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="member" type="tdl:Member">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="member" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="Content" type="tdl:Content">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="LiteralValue">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Value">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="content" type="tdl:Content">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="dataType" type="tdl:DataType">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="dataType" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="LiteralValue" type="tdl:LiteralValue">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ContentReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Value">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="content" type="tdl:Content">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="content" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ContentReference" type="tdl:ContentReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="LiteralValueReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Value">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="content" type="tdl:LiteralValue">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="content" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="LiteralValueReference" type="tdl:LiteralValueReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="RepeatedEventSequence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:EventSequence">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="repetitions" type="tdl:Value">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="interval" type="tdl:Value">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="RepeatedEventSequence" type="tdl:RepeatedEventSequence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="EventTemplateOccurrence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:EventOccurrence">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="eventTemplate" type="tdl:EventSpecificationTemplate">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="entityBinding" type="tdl:EntityBinding">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="occurrenceArgument" type="tdl:Value">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="eventTemplate" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EventTemplateOccurrence" type="tdl:EventTemplateOccurrence">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="EventSpecificationTemplate">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:PackageableElement">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="eventSpecification" type="tdl:EventOccurrenceSpecification">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EventSpecificationTemplate" type="tdl:EventSpecificationTemplate">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="EntityBinding">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="templateEntity" type="tdl:EntityReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="occurrenceEntity" type="tdl:EntityReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="EntityBinding" type="tdl:EntityBinding">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::StructuredTestObjective.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ExtendedTestConfiguration">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TestConfiguration">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="configurations" type="tdl:TestConfigurationInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="operations" type="tdl:TestConfigurationOperation">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ExtendedTestConfiguration" type="tdl:ExtendedTestConfiguration">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="TestConfigurationInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="configuration" type="tdl:TestConfiguration">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="configuration" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TestConfigurationInstance" type="tdl:TestConfigurationInstance">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType abstract="true" name="TestConfigurationOperation">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="component" type="tdl:ComponentReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="TestConfigurationOperation" type="tdl:TestConfigurationOperation">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ComponentReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:Element">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="component" type="tdl:ComponentInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+          <xsd:element name="configuration" type="tdl:TestConfigurationInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="component" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+        <xsd:attribute name="configuration" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ComponentReference" type="tdl:ComponentReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ComponentMerge">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TestConfigurationOperation">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="target" type="tdl:ComponentReference">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ComponentMerge" type="tdl:ComponentMerge">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ComponentHide">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TestConfigurationOperation"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ComponentHide" type="tdl:ComponentHide">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ReassignRole">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TestConfigurationOperation">
+        <xsd:attribute name="role" type="tdl:ComponentInstanceRole" use="required">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ReassignRole" type="tdl:ReassignRole">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ComponentAlias">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:TestConfigurationOperation"/>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ComponentAlias" type="tdl:ComponentAlias">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+  <xsd:complexType name="ExtendedGateReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+    <xsd:complexContent>
+      <xsd:extension base="tdl:GateReference">
+        <xsd:choice maxOccurs="unbounded" minOccurs="0">
+          <xsd:element name="configuration" type="tdl:TestConfigurationInstance">
+            <xsd:annotation>
+              <xsd:documentation>
+                <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+              </xsd:documentation>
+            </xsd:annotation>
+          </xsd:element>
+        </xsd:choice>
+        <xsd:attribute name="configuration" type="xsd:string">
+          <xsd:annotation>
+            <xsd:documentation>
+              <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+            </xsd:documentation>
+          </xsd:annotation>
+        </xsd:attribute>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+  <xsd:element name="ExtendedGateReference" type="tdl:ExtendedGateReference">
+    <xsd:annotation>
+      <xsd:documentation>
+        <p>From package TestDescriptionLanguage::TDL_MetaModel::Extensions::ExtendedTestConfiguration.</p>
+      </xsd:documentation>
+    </xsd:annotation>
+  </xsd:element>
+</xsd:schema>