8.16.3.2 IfcExtendedProperties

RV ⓘ

AbV ⓘ

ABSTRACT This definition may not be instantiated

8.16.3.2.1 Semantic definition

The IfcExtendedProperties is an abstract supertype of all extensible property collections that are applicable to certain characterized entities. Instantiable subtypes of IfcExtendedProperties assign the property collection to a particular characterized entity.

Instantiable subtypes have a set of Properties, each providing property name, value and unit and other instance information, depending on the subtype of IfcProperty referenced.

8.16.3.2.2 Entity inheritance

8.16.3.2.3 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.
Click to show 1 hidden inherited attributes
IfcExtendedProperties (3)
1	Name	OPTIONAL IfcIdentifier	The name given to the set of properties.
2	Description	OPTIONAL IfcText	Description for the set of properties.
3	Properties	SET [1:?] OF IfcProperty	The set of properties provided for this extended property collection.

Table 8.16.3.2.A

8.16.3.2.4 Formal representation

 ENTITY IfcExtendedProperties
 ABSTRACT SUPERTYPE OF (ONEOF
	(IfcMaterialProperties
	,IfcProfileProperties))
 SUBTYPE OF (IfcPropertyAbstraction);
	Name : OPTIONAL IfcIdentifier;
	Description : OPTIONAL IfcText;
	Properties : SET [1:?] OF IfcProperty;
END_ENTITY;