diff --git a/src/main/java/org/etsi/osl/tmf/common/model/ERangeInterval.java b/src/main/java/org/etsi/osl/tmf/common/model/ERangeInterval.java
new file mode 100644
index 0000000000000000000000000000000000000000..f4c224c842ba62e447db201d60b29b54decbb17b
--- /dev/null
+++ b/src/main/java/org/etsi/osl/tmf/common/model/ERangeInterval.java
@@ -0,0 +1,27 @@
+package org.etsi.osl.tmf.common.model;
+
+public enum ERangeInterval {
+    OPEN("open"),
+    CLOSED("closed"),
+    CLOSED_BOTTOM("closedBottom"),
+    CLOSED_TOP("closedTop");
+
+    private String value;
+
+    ERangeInterval(String value) {this.value = value;}
+
+    public String getValue() {
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        return this.getValue();
+    }
+
+    public static ERangeInterval getEnum(String value) {
+        for(ERangeInterval v : values())
+            if(v.getValue().equalsIgnoreCase(value)) return v;
+        throw new IllegalArgumentException();
+    }
+}