ABSTRACT This definition may not be instantiated
The IfcPropertyAbstraction is an abstract supertype of all property related entities defined as dependent resource entities within the specification. It may have an external reference to a dictionary or library that provides additional information about its definition. Instantiable subtypes have property name, value and other instance information.
|HasExternalReferences||SET [0:?] OF IfcExternalReferenceRelationship FOR RelatedResourceObjects||
Reference to an external reference, e.g. library, classification, or document information, that is associated to the property definition.
ENTITY IfcPropertyAbstraction ABSTRACT SUPERTYPE OF (ONEOF (IfcExtendedProperties ,IfcPreDefinedProperties ,IfcProperty ,IfcPropertyEnumeration)); INVERSE HasExternalReferences : SET [0:?] OF IfcExternalReferenceRelationship FOR RelatedResourceObjects; END_ENTITY;