IFC 4.3.0.1 (IFC4X3) development

8.6.3.8 IfcExternalReferenceRelationship

8.6.3.8.1 Semantic definition

IfcExternalReferenceRelationship is a relationship entity that enables objects from the IfcResourceObjectSelect to have the ability to be tagged by external references.

8.6.3.8.2 Entity inheritance

8.6.3.8.3 Attributes

# Attribute Type Description
IfcResourceLevelRelationship (2)
1 Name OPTIONAL IfcLabel

A name used to identify or qualify the relationship.

2 Description OPTIONAL IfcText

A description that may apply additional information about the relationship.

Click to show 2 hidden inherited attributes Click to hide 2 inherited attributes
IfcExternalReferenceRelationship (2)
3 RelatingReference IfcExternalReference

An external reference that can be used to tag an object within the range of IfcResourceObjectSelect.

4 RelatedResourceObjects SET [1:?] OF IfcResourceObjectSelect

Objects within the list of IfcResourceObjectSelect that can be tagged by an external reference to a dictionary, library, catalogue, classification or documentation.

Table 8.6.3.8.A

8.6.3.8.4 Formal representation

ENTITY IfcExternalReferenceRelationship
 SUBTYPE OF (IfcResourceLevelRelationship);
	RelatingReference : IfcExternalReference;
	RelatedResourceObjects : SET [1:?] OF IfcResourceObjectSelect;
END_ENTITY;

8.6.3.8.5 References

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8.6.3.8.6 Changelog

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