IFC 4.3.0.1 (IFC4X3_TC1)

5.1.3.29 IfcRelAssociates

ABSTRACT This definition may not be instantiated

5.1.3.29.1 Semantic definition

The association relationship IfcRelAssociates refers to sources of information (most notably a classification, library, document, approval, constraint, or material). The information associated may reside internally or externally of the project data. There is no dependency implied by the association.

Association relationships can be established to objects (occurrences as subtypes of IfcObject) or to types (as subtypes of IfcTypeObject). Some associations (such as approval, or document) may also be applied to property templates (as subtypes of IfcPropertyDefinition).

The association relationship establishes an association between one to many objects or property templates and the associated information. The subtypes of IfcRelAssociates establish the particular semantic meaning of the association relationship.

5.1.3.29.2 Entity inheritance

5.1.3.29.3 Attributes

# Attribute Type Description
IfcRoot (4)
1 GlobalId IfcGloballyUniqueId

Assignment of a globally unique identifier within the entire software world.

2 OwnerHistory OPTIONAL IfcOwnerHistory

Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object,

3 Name OPTIONAL IfcLabel

Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.

4 Description OPTIONAL IfcText

Optional description, provided for exchanging informative comments.

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IfcRelAssociates (1)
5 RelatedObjects SET [1:?] OF IfcDefinitionSelect

Set of object or property definitions to which the external references or information is associated. It includes object and type objects, property set templates, property templates and property sets and contexts.

Table 5.1.3.29.A

5.1.3.29.4 Concept usage

Concept Usage Description
IfcRoot (2)
Revision Control General

Ownership, history, and merge state is captured using IfcOwnerHistory.

Software Identity General

IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept.

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Table 5.1.3.29.B

5.1.3.29.5 Formal representation

ENTITY IfcRelAssociates
 ABSTRACT SUPERTYPE OF (ONEOF
	(IfcRelAssociatesApproval
	,IfcRelAssociatesClassification
	,IfcRelAssociatesConstraint
	,IfcRelAssociatesDocument
	,IfcRelAssociatesLibrary
	,IfcRelAssociatesMaterial
	,IfcRelAssociatesProfileDef))
 SUBTYPE OF (IfcRelationship);
	RelatedObjects : SET [1:?] OF IfcDefinitionSelect;
END_ENTITY;

5.1.3.29.6 References

5.1.3.29.7 Changelog

5.1.3.29.7.1 IFC4

  • where rule, WR21
  • abstract, Is now abstract
  • attribute RelatedObjects type, Changed from "set[1:?] of IfcRoot" to "set[1:?] of IfcDefinitionSelect"