8.16.3.5 IfcPropertyAbstraction

RV ⓘ

AbV ⓘ

ABSTRACT This definition may not be instantiated

8.16.3.5.1 Semantic definition

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.

8.16.3.5.2 Entity inheritance

- IfcPropertyAbstraction

8.16.3.5.3 Attributes

#	Attribute	Type	Description
IfcPropertyAbstraction (1)
	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. IFC4-CHANGE New inverse attribute.

Table A

8.16.3.5.4 Formal representation

ENTITY IfcPropertyAbstraction
ABSTRACT SUPERTYPE OF (ONEOF
(IfcExtendedProperties
,IfcPreDefinedProperties
,IfcProperty
,IfcPropertyEnumeration));
INVERSE
HasExternalReferences : SET [0:?] OF IfcExternalReferenceRelationship FOR RelatedResourceObjects;
END_ENTITY;