IFC 4.3.0.1 (IFC4X3) development

5.1.3.17 IfcPropertyTemplate

ABSTRACT This definition may not be instantiated

5.1.3.17.1 Semantic definition

The IfcPropertyTemplate is an abstract supertype comprising the templates for all dynamically extensible properties, either as an IfcComplexPropertyTemplate, or an IfcSimplePropertyTemplate. These templates determine the structure of:

The individual property templates are interpreted according to their Name attribute and may have a predefined property type, property unit, and property data type. A template however shall not have measure values, or quantity values assigned.

5.1.3.17.2 Entity inheritance

5.1.3.17.3 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.

IfcPropertyDefinition (2)
HasContext SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions

No description available.

HasAssociations SET [0:?] OF IfcRelAssociates FOR RelatedObjects

Reference to the relationship IfcRelAssociates and thus to those externally defined concepts, like classifications, documents, or library information, which are associated to the property definition.

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IfcPropertyTemplate (2)
PartOfComplexTemplate SET [0:?] OF IfcComplexPropertyTemplate FOR HasPropertyTemplates

Reference to a complex property templates. It should only be provided, if the PropertyType of the referenced complex property template is set to COMPLEX.

PartOfPsetTemplate SET [0:?] OF IfcPropertySetTemplate FOR HasPropertyTemplates

Reference to the IfcPropertySetTemplate that defines the scope for the IfcPropertyTemplate. A single IfcPropertyTemplate can be defined within the scope of zero, one or many IfcPropertySetTemplate'.

Table 5.1.3.17.A

5.1.3.17.4 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 5.1.3.17.B

5.1.3.17.5 Formal representation

ENTITY IfcPropertyTemplate
 ABSTRACT SUPERTYPE OF (ONEOF
	(IfcComplexPropertyTemplate
	,IfcSimplePropertyTemplate))
 SUBTYPE OF (IfcPropertyTemplateDefinition);
 INVERSE
	PartOfComplexTemplate : SET [0:?] OF IfcComplexPropertyTemplate FOR HasPropertyTemplates;
	PartOfPsetTemplate : SET [0:?] OF IfcPropertySetTemplate FOR HasPropertyTemplates;
END_ENTITY;

5.1.3.17.6 References

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5.1.3.17.7 Changelog

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