IfcPreDefinedProperties

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcPreDefinedProperties			ADDED

Semantic definitions at the entity

Entity 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.

HISTORY New entity in IFC4.

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	C
IfcPropertyAbstraction
	HasExternalReferences	IfcExternalReferenceRelationship @RelatedResourceObjects	S[0:?]	Reference to an external reference, e.g. library, classification, or document information, that is associated to the property definition.	X
IfcPreDefinedProperties

Formal representations

XSD Specification

 <xs:element name="IfcPreDefinedProperties" type="ifc:IfcPreDefinedProperties" abstract="true" substitutionGroup="ifc:IfcPropertyAbstraction" nillable="true"/>

 <xs:complexType name="IfcPreDefinedProperties" abstract="true">

  <xs:complexContent>

   <xs:extension base="ifc:IfcPropertyAbstraction"/>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcPreDefinedProperties

 ABSTRACT SUPERTYPE OF(ONEOF(IfcReinforcementBarProperties, IfcSectionProperties, IfcSectionReinforcementProperties))

 SUBTYPE OF (IfcPropertyAbstraction);

END_ENTITY;

 EXPRESS-G diagram

	Vordefinierte Merkmale
	Pre Defined Properties
	Propriétés prédéfinies