ABSTRACT This definition may not be instantiated
220.127.116.11.1 Semantic definition
The IfcPreDefinedProperties is an abstract supertype of all predefined property collections that have explicit attributes, each representing a property. Instantiable subtypes are assigned to specific characterised entities.
18.104.22.168.2 Entity inheritance
|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.
22.214.171.124.4 Formal representation
ENTITY IfcPreDefinedProperties ABSTRACT SUPERTYPE OF (ONEOF (IfcReinforcementBarProperties ,IfcSectionProperties ,IfcSectionReinforcementProperties)) SUBTYPE OF (IfcPropertyAbstraction); END_ENTITY;