5.1.3.32 IfcRelAssociatesLibrary

5.1.3.32.1 Semantic definition

The objectified relationship (IfcRelAssociatesLibrary) handles the assignment of a library item (items of the select IfcLibrarySelect) to subtypes of IfcObjectDefinition or IfcPropertyDefinition.

The relationship is used to assign a library reference or a more detailed link to library information to objects, property sets or types. A single library reference can be applied to multiple items.

The inherited attribute RelatedObjects defines the items to which the library association is applied. The attribute RelatingLibrary is the reference to a library reference, applied to the item(s).

5.1.3.32.2 Entity inheritance

- IfcRoot

5.1.3.32.3 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.
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.
Click to show 5 hidden inherited attributes
IfcRelAssociatesLibrary (1)
6	RelatingLibrary	IfcLibrarySelect	Reference to a library, from which the definition of the property set is taken.

Table 5.1.3.32.A

5.1.3.32.4 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 5.1.3.32.B

5.1.3.32.5 Formal representation

 ENTITY IfcRelAssociatesLibrary
 SUBTYPE OF (IfcRelAssociates);
	RelatingLibrary : IfcLibrarySelect;
END_ENTITY;