IFC 4.3.0.1 (IFC4X3) development

4.1.7 Product Assignment

Products may have assignments indicating processes that operate upon the product. An example of such assignment is a task to construct a wall.

The following diagram shows the generic classes and relationships used when applying this concept. In addition, concepts may have particular importance to common or standardised industry practices and scenarios. For these specific usage scenarios, the tables below shows a recommended list of general usage patterns that users may adopt.

G IfcProduct IfcProduct 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] IfcRelAssignsToProduct IfcRelAssignsToProduct 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] Type 5. RelatedObjects [1:?] 6. RelatedObjectsType [0:1] 7. RelatingProduct [1:1] IfcProduct:ReferencedBy1->IfcRelAssignsToProduct:RelatingProduct0 IfcObject IfcObject 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] IfcRelAssignsToProduct:RelatedObjects1->IfcObject:HasAssignments0
Figure 4.1.7.A

General Usage

ApplicableEntity
Type
IfcRelAssignsToProduct.RelatedObjects
IfcBeam IfcStructuralCurveMember
IfcBuiltElement IfcTask
IfcColumn IfcStructuralCurveMember
IfcColumn IfcTask
IfcDistributionControlElementIfcTask
IfcDistributionControlElementIfcProcedure
IfcDistributionControlElementIfcEvent
IfcDistributionPort IfcDistributionSystem
IfcDistributionPort IfcDistributionCircuit
IfcMember IfcStructuralCurveMember
IfcMember IfcTask
IfcPlate IfcStructuralSurfaceMember
IfcPlate IfcTask
IfcSlab IfcStructuralSurfaceMember
IfcSlab IfcTask
IfcWall IfcStructuralSurfaceMember
IfcWall IfcTask
Table 4.1.7.B

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