Natural language names
Weist Ressource zu - Relation
Rel Assigns To Resource
Assignation à ressource
Change log
      OwnerHistoryMODIFIEDInstantiation changed to OPTIONAL.
      RelatingResourceMODIFIEDType changed from IfcResource to IfcResourceSelect.
      RelatedObjectsTypeMODIFIEDStatus changed to Deprecated.
Semantic definitions at the entity
Entity definition

The objectified relationship IfcRelAssignsToResource handles the assignment of objects (as subtypes of IfcObject), acting as a resource usage or consumption, to a resource (as subtypes of IfcResource).

EXAMPLE  The assignment of a resource usage to a construction resource is an application of this generic relationship. It could be an actor, as person or organization assigned to a labor resource, or a raw product assigned to a construction product or material resource).
HISTORY  New entity in IFC2x.
Attribute definitions
#AttributeTypeCardinalityDescription G
7RelatingResourceIfcResourceSelect Reference to the resource to which the objects are assigned to.
IFC4 CHANGE Datatype expanded to include IfcResource and IfcTypeResource.
Formal Propositions
NoSelfReferenceThe instance to with the relation points shall not be contained in the set of RelatedObjects.
Inherited definitions from supertypes
Entity inheritance IfcRelAssigns IfcRelationship IfcRoot
Attribute inheritance
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.
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
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
6RelatedObjectsTypeIfcObjectTypeEnum? 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.
7RelatingResourceIfcResourceSelect Reference to the resource to which the objects are assigned to.
IFC4 CHANGE Datatype expanded to include IfcResource and IfcTypeResource.
Definitions applying to General Usage

Concept inheritance

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

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcResource IfcTypeResource

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