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5.1.3.8 IfcPreDefinedPropertySet

ABSTRACT This definition may not be instantiated

5.1.3.8.1 Semantic definition

IfcPreDefinedPropertySet is a generalization of all statically defined property sets that are assigned to an object or type object. The statically or pre-defined property sets are entities with a fixed list of attributes having particular defined data types.

Property sets are related to other objects by using the relationship object that refers to the corresponding object:

  • Occurrence Object: IfcRelDefinesByProperties using the inverse attribute DefinesOccurrence.
  • Type Object: using a direct link by inverse attribute DefinesType.

IfcPreDefinedPropertySet's can be assigned to objects and object types but do not have a defining property set template.

5.1.3.8.2 Entity inheritance

5.1.3.8.3 Attributes

# Attribute Type Description
IfcRoot (4)
IfcPropertyDefinition (2)
Click to show 6 hidden inherited attributes
IfcPropertySetDefinition (3)
DefinesType SET [0:?] OF IfcTypeObject FOR HasPropertySets

The type object to which the property set is assigned. The property set acts as a shared property set to all occurrences of the type object.

IsDefinedBy SET [0:?] OF IfcRelDefinesByTemplate FOR RelatedPropertySets

Relation to the property set template, via the objectified relationship IfcRelDefinesByTemplate, that, if given, provides the definition template for the property set or quantity set and its properties.

DefinesOccurrence SET [0:?] OF IfcRelDefinesByProperties FOR RelatingPropertyDefinition

Reference to the relation to one or many object occurrences that are characterized by the property set definition. A single property set can be assigned to multiple object occurrences using the objectified relationship IfcRefDefinesByProperties.

Table 5.1.3.8.A

5.1.3.8.4 Concept usage

Concept Usage Description
IfcRoot (2)
Click to show 2 hidden inherited concepts
Table 5.1.3.8.B

5.1.3.8.5 Formal representation

ENTITY IfcPreDefinedPropertySet
ABSTRACT SUPERTYPE OF (ONEOF
(IfcDoorLiningProperties
,IfcDoorPanelProperties
,IfcPermeableCoveringProperties
,IfcReinforcementDefinitionProperties
,IfcWindowLiningProperties
,IfcWindowPanelProperties))
SUBTYPE OF (IfcPropertySetDefinition);
END_ENTITY;

5.1.3.8.6 References

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5.1.3.8.7 Changelog

5.1.3.8.7.1 IFC4

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