5.1.3.29 IfcRelAssociates

RV ⓘ

AbV ⓘ

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

- IfcRoot

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, NOTE Only the last modification is stored - either as addition, deletion or modification. IFC4-CHANGE The attribute has been changed to be OPTIONAL.
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.
Click to show 4 hidden 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. IFC4-CHANGE The attribute datatype has been changed from IfcRoot to IfcDefinitionSelect.

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.
Click to show 2 hidden inherited concepts

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;