IfcRelAssignsToProduct

Natural language names
Weist Produkt zu - Relation
Rel Assigns To Product
Assignation à produit
Change log
ItemSPFXMLChangeDescription
IFC2x3 to IFC4 4.0.0.0
    IfcRelAssignsToProduct
      OwnerHistoryMODIFIEDInstantiation changed to OPTIONAL.
      RelatingProductMODIFIEDType changed from IfcProduct to IfcProductSelect.
IFC4 Addendum 2 Technical Corrigendum 1 4.0.2.1
    IfcRelAssignsToProduct
      RelatedObjectsTypeMODIFIEDStatus changed to Deprecated.
IFC4x1 Final 4.1.0.0
    IfcRelAssignsToProduct
      RelatedObjectsTypeMODIFIEDStatus changed from Deprecated.
Semantic definitions at the entity
Entity definition

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:

HISTORY  New entity in IFC2x

IFC2x3 CHANGE  The reference of a product within a spatial structure is now handled by a new relationship object IfcRelReferencedInSpatialStructure. The IfcRelAssignsToProduct shall not be used to represent this relation from IFC2x3 onwards.

Attribute definitions
#AttributeTypeCardinalityDescription G
7RelatingProductIfcProductSelect Reference to the product or product type to which the objects are assigned to.
IFC4 CHANGE Datatype expanded to include IfcProduct and IfcTypeProduct.
X
Formal Propositions
RuleDescription
NoSelfReferenceThe instance to which the relation points, as provided by RelatingProduct shall not be contained in the set of RelatedObjects.
Inherited definitions from supertypes
Entity inheritance IfcRelAssigns IfcRelationship IfcRoot
Attribute inheritance
#AttributeTypeCardinalityDescriptionG
IfcRoot
1GlobalIdIfcGloballyUniqueId Assignment of a globally unique identifier within the entire software world. X
2OwnerHistoryIfcOwnerHistory? 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 in stored - either as addition, deletion or modification.
IFC4 CHANGE  The attribute has been changed to be OPTIONAL.
X
3NameIfcLabel? 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. X
4DescriptionIfcText? Optional description, provided for exchanging informative comments. X
IfcRelationship
IfcRelAssigns
5RelatedObjectsIfcObjectDefinitionS[1:?] Related objects, which are assigned to a single object. The type of the single (or relating) object is defined in the subtypes of IfcRelAssigns. X
6RelatedObjectsTypeIfcStrippedOptional? Particular type of the assignment relationship. It can constrain the applicable object types, used within the role of RelatedObjects.
IFC4 CHANGE  The attribute is deprecated and shall no longer be used. A NIL value should always be assigned.
IFC4.3.0.1-CHANGE The attribute type has been changed to IfcStrippedOptional given that IfcObjectTypeEnum has been deleted.
X
IfcRelAssignsToProduct
7RelatingProductIfcProductSelect Reference to the product or product type to which the objects are assigned to.
IFC4 CHANGE Datatype expanded to include IfcProduct and IfcTypeProduct.
X
Definitions applying to General Usage

Concept inheritance

#ConceptTemplateModel View
IfcRoot
IdentitySoftware IdentityGeneral Usage
Revision ControlRevision ControlGeneral Usage
Formal representations
XML Specification
 <xs:element name="IfcRelAssignsToProduct" type="ifc:IfcRelAssignsToProduct" substitutionGroup="ifc:IfcRelAssigns" nillable="true"/>
 <xs:complexType name="IfcRelAssignsToProduct">
  <xs:complexContent>
   <xs:extension base="ifc:IfcRelAssigns">
    <xs:sequence>
     <xs:element name="RelatingProduct">
      <xs:complexType>
       <xs:group ref="ifc:IfcProductSelect"/>
      </xs:complexType>
     </xs:element>
    </xs:sequence>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>
EXPRESS Specification
ENTITY IfcRelAssignsToProduct
 SUBTYPE OF (IfcRelAssigns);
  RelatingProduct : IfcProductSelect;
 WHERE
  NoSelfReference : SIZEOF(QUERY(Temp <* SELF\IfcRelAssigns.RelatedObjects | RelatingProduct :=: Temp)) = 0;
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcProduct IfcTypeProduct

Link to this page  Link to this page