5.1.3.39 IfcRelDefinesByTemplate

5.1.3.39.1 Semantic definition

The objectified relationship IfcRelDefinesByTemplate defines the relationship between a property set template and property sets. Common information about property sets (e.g., the applicable name, description and contained properties) is defined by a property set template and assigned to all relevant property sets.

The IfcRelDefinesByTemplate is a 1-to-N relationship, as it allows one property set template to be assigned to one or many property sets or quantity sets. Those property sets then share the same property set template definition.

5.1.3.39.2 Entity inheritance

- IfcRoot

5.1.3.39.3 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	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
IfcRelDefinesByTemplate (2)
5	RelatedPropertySets	SET [1:?] OF IfcPropertySetDefinition	One or many property sets or quantity sets that obtain their definitions from the single property set template.
6	RelatingTemplate	IfcPropertySetTemplate	Property set template that provides the common definition of related property sets.

Table 5.1.3.39.A

5.1.3.39.4 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 5.1.3.39.B

5.1.3.39.5 Formal representation

ENTITY IfcRelDefinesByTemplate
 SUBTYPE OF (IfcRelDefines);
	RelatedPropertySets : SET [1:?] OF IfcPropertySetDefinition;
	RelatingTemplate : IfcPropertySetTemplate;
END_ENTITY;