IfcProperty

Semantic definitions at the entity

Entity definition

IfcProperty is an abstract generalization for all types of properties that can be associated with IFC objects through the property set mechanism.

HISTORY New entity in IFC1.0.

Attribute definitions

#	Attribute	Type	Cardinality	Description	C
1	Name	IfcIdentifier	[1:1]	Name for this property. This label is the significant name string that defines the semantic meaning for the property.	X
2	Description	IfcText	[0:1]	Informative text to explain the property.	X
	PartOfPset	IfcPropertySet @HasProperties	S[0:?]	Reference to the IfcPropertySet by which the IfcProperty is referenced.	X
	PropertyForDependance	IfcPropertyDependencyRelationship @DependingProperty	S[0:?]	The property on whose value that of another property depends.	X
	PropertyDependsOn	IfcPropertyDependencyRelationship @DependantProperty	S[0:?]	The relating property on which the value of the property depends.	X
	PartOfComplex	IfcComplexProperty @HasProperties	S[0:?]	Reference to the IfcComplexProperty in which the IfcProperty is contained.	X
	HasConstraints	IfcResourceConstraintRelationship @RelatedResourceObjects	S[0:?]	User-defined constraints for the property.	X
	HasApprovals	IfcResourceApprovalRelationship @RelatedResourceObjects	S[0:?]	User-defined approvals for the property.	X

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
IfcProperty
1	Name	IfcIdentifier	[1:1]	Name for this property. This label is the significant name string that defines the semantic meaning for the property.	X
2	Description	IfcText	[0:1]	Informative text to explain the property.	X
	PartOfPset	IfcPropertySet @HasProperties	S[0:?]	Reference to the IfcPropertySet by which the IfcProperty is referenced.	X
	PropertyForDependance	IfcPropertyDependencyRelationship @DependingProperty	S[0:?]	The property on whose value that of another property depends.	X
	PropertyDependsOn	IfcPropertyDependencyRelationship @DependantProperty	S[0:?]	The relating property on which the value of the property depends.	X
	PartOfComplex	IfcComplexProperty @HasProperties	S[0:?]	Reference to the IfcComplexProperty in which the IfcProperty is contained.	X
	HasConstraints	IfcResourceConstraintRelationship @RelatedResourceObjects	S[0:?]	User-defined constraints for the property.	X
	HasApprovals	IfcResourceApprovalRelationship @RelatedResourceObjects	S[0:?]	User-defined approvals for the property.	X

Formal representations

XSD Specification

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

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

  <xs:complexContent>

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

    <xs:attribute name="Name" type="ifc:IfcIdentifier" use="optional"/>

    <xs:attribute name="Description" type="ifc:IfcText" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcProperty

 ABSTRACT SUPERTYPE OF(ONEOF(IfcComplexProperty, IfcSimpleProperty))

 SUBTYPE OF (IfcPropertyAbstraction);

  Name : IfcIdentifier;

  Description : OPTIONAL IfcText;

 INVERSE

  PartOfPset : SET OF IfcPropertySet FOR HasProperties;

  PropertyForDependance : SET OF IfcPropertyDependencyRelationship FOR DependingProperty;

  PropertyDependsOn : SET OF IfcPropertyDependencyRelationship FOR DependantProperty;

  PartOfComplex : SET OF IfcComplexProperty FOR HasProperties;

  HasConstraints : SET OF IfcResourceConstraintRelationship FOR RelatedResourceObjects;

  HasApprovals : SET OF IfcResourceApprovalRelationship FOR RelatedResourceObjects;

END_ENTITY;

 EXPRESS-G diagram

	Merkmal
	Property
	Propriété