diff --git a/ontology/saref4wear.ttl b/ontology/saref4wear.ttl
index 78a500ebd340254c34bc4ea645869d7c144be5fc..1277928865787748e14c8013f6bd3e15b971816d 100644
--- a/ontology/saref4wear.ttl
+++ b/ontology/saref4wear.ttl
@@ -287,6 +287,12 @@ s4wear:followsPolicy rdf:type owl:ObjectProperty ;
                      rdfs:label "follows policy"@en .
 
 
+###  https://saref.etsi.org/saref4wear/hasHeight
+s4wear:hasHeight rdf:type owl:ObjectProperty ;
+                 rdfs:domain s4wear:WearableDevice ;
+                 rdfs:range saref:Property .
+
+
 ###  https://saref.etsi.org/saref4wear/hasInterface
 s4wear:hasInterface rdf:type owl:ObjectProperty ;
                     rdfs:domain saref:Device ;
@@ -295,6 +301,12 @@ s4wear:hasInterface rdf:type owl:ObjectProperty ;
                     rdfs:label "has interface"@en .
 
 
+###  https://saref.etsi.org/saref4wear/hasLength
+s4wear:hasLength rdf:type owl:ObjectProperty ;
+                 rdfs:domain s4wear:WearableDevice ;
+                 rdfs:range saref:Property .
+
+
 ###  https://saref.etsi.org/saref4wear/hasPowerSupply
 s4wear:hasPowerSupply rdf:type owl:ObjectProperty ;
                       rdfs:domain saref:Device ;
@@ -309,6 +321,17 @@ s4wear:hasSensor rdf:type owl:ObjectProperty ;
                  rdfs:range saref:Sensor ;
                  rdfs:comment "A relationship specifying a sensor integrated into a device."@en ;
                  rdfs:label "has sensor"@en .
+                 
+###  https://saref.etsi.org/saref4wear/hasWeight
+s4wear:hasWeight rdf:type owl:ObjectProperty ;
+                 rdfs:domain s4wear:WearableDevice ;
+                 rdfs:range saref:Property .
+
+
+###  https://saref.etsi.org/saref4wear/hasWidth
+s4wear:hasWidth rdf:type owl:ObjectProperty ;
+                rdfs:domain s4wear:WearableDevice ;
+                rdfs:range saref:Property .
 
 
 ###  https://saref.etsi.org/saref4wear/installs
@@ -484,23 +507,6 @@ s4wear:hasStorage rdf:type owl:DatatypeProperty ;
                   rdfs:comment "A relationship defining the storage capacity of a wearable."@en ;
                   rdfs:label "has storage"@en .
 
-
-###  https://saref.etsi.org/saref4wear/hasWeight
-s4wear:hasWeight rdf:type owl:DatatypeProperty ;
-                 rdfs:domain s4wear:Wearable ;
-                 rdfs:range xsd:double ;
-                 rdfs:comment "A relationship defining the weight of a wearable device."@en ;
-                 rdfs:label "has weight"@en .
-
-
-###  https://saref.etsi.org/saref4wear/hasWidth
-s4wear:hasWidth rdf:type owl:DatatypeProperty ;
-                rdfs:domain s4wear:Wearable ;
-                rdfs:range xsd:double ;
-                rdfs:comment "A relationship defining the width dimention of a wearable."@en ;
-                rdfs:label "has width"@en .
-
-
 ###  https://saref.etsi.org/saref4wear/meansOfTransport
 s4wear:meansOfTransport rdf:type owl:DatatypeProperty ;
                         rdfs:domain saref:FeatureOfInterest ;
@@ -1072,13 +1078,6 @@ s4wear:SoundLevel rdf:type owl:NamedIndividual ,
                   rdfs:label "Sound level"@en .
 
 
-###  https://saref.etsi.org/saref4wear/Temperature
-s4wear:Temperature rdf:type owl:NamedIndividual ,
-                            s4wear:EnvironmentalProperty ;
-                   rdfs:comment "The temperature of the environment."@en ;
-                   rdfs:label "Temperature"@en .
-
-
 ###  https://saref.etsi.org/saref4wear/WearerTemperature
 s4wear:WearerTemperature rdf:type owl:NamedIndividual ,
                                   s4wear:BiometricProperty ;