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5.1.3.29 IfcRelAssociates

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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 to 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.

{ .change-ifc2x4}

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

An 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

An optional description, provided to exchange informative comments.

Click to show 4 hidden inherited attributes Click to hide 4 inherited attributes
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 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 also provide a name and description for the concept.

Click to show 2 hidden inherited concepts Click to hide 2 inherited concepts
Table 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

Edit on Github

6 contributor(s): ArturTomczakGeert HesselinkLรฉon van BerloDion Moultluz pazbSI-Bot
Last change: Typos and small patches in content and entities (#986) * Typos and small patches in content and entities * revert redundant changes * Update docs/schemas/core/IfcKernel/Entities/IfcObjectDefinition.md Co-authored-by: Thomas Krijnen <t.krijnen@gmail.com> * Update docs/schemas/core/IfcKernel/Entities/IfcPropertySetDefinition.md Co-authored-by: Thomas Krijnen <t.krijnen@gmail.com> * Update docs/schemas/core/IfcKernel/Entities/IfcPropertyTemplateDefinition.md Co-authored-by: Thomas Krijnen <t.krijnen@gmail.com> * Update docs/schemas/core/IfcKernel/Entities/IfcRelDeclares.md Co-authored-by: Thomas Krijnen <t.krijnen@gmail.com> * Update docs/schemas/core/IfcKernel/Entities/IfcRelationship.md Co-authored-by: Thomas Krijnen <t.krijnen@gmail.com> --------- Co-authored-by: Thomas Krijnen <t.krijnen@gmail.com> Co-authored-by: ArturTomczak <artomczak@gmail.com> by Geert Hesselink on 2025-09-18T09:21:05+01:00

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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"