The objectified relationship IfcRelAssignsToProduct handles the assignment of objects (subtypes of IfcObject) to a product (subtypes of IfcProduct). The Name attribute should be used to classify the usage of the IfcRelAssignsToProduct objectified relationship. The following Name values are proposed:
- 'Context' : Assignment of a context specific representation, such as of structural members to a different context representation (with potentially different decomposition breakdown) such as of building elements for a specific context specific representation.
- 'View' : Assignment of a product (via RelatingProduct) that is decomposed according to a discipline view, to another product (via RelatedObjects) that is decomposed according to a different discipline view. An example is the assignment of the architectural slab to a different decomposition of the pre manufactured sections of a slab (under a precast concrete discipline view).
Assignment of a globally unique identifier within the entire software world.
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,
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.
Optional description, provided for exchanging informative comments.
|5||RelatedObjects||SET [1:?] OF IfcObjectDefinition||
Related objects, which are assigned to a single object. The type of the single (or relating) object is defined in the subtypes of IfcRelAssigns.
Particular type of the assignment relationship. It can constrain the applicable object types, used within the role of RelatedObjects.
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Reference to the product or product type to which the objects are assigned to.
The instance to which the relation points, as provided by RelatingProduct shall not be contained in the set of RelatedObjects.
Ownership, history, and merge state is captured using IfcOwnerHistory.
IfcRoot assigns the globally unique ID. In addition it may provide for a name and a description about the concept.
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ENTITY IfcRelAssignsToProduct SUBTYPE OF (IfcRelAssigns); RelatingProduct : IfcProductSelect; WHERE NoSelfReference : SIZEOF(QUERY(Temp <* SELF\IfcRelAssigns.RelatedObjects | RelatingProduct :=: Temp)) = 0; END_ENTITY;