IfcRelAssignsToActor

Natural language names
deWeist Akteur zu - Relation
enRel Assigns To Actor
frAssignation à acteur
Change log
ItemSPFXMLChangeDescription
IFC2x3 to IFC4
    IfcRelAssignsToActor
      OwnerHistoryMODIFIEDInstantiation changed to OPTIONAL.
Semantic definitions at the entity
Entity definition

The objectified relationship IfcRelAssignsToActor handles the assignment of objects (subtypes of IfcObject) to an actor (subtypes of IfcActor).

The IfcRelAssignsToActor objectified relationship defines a relationship between an IfcActor and one or many objects. A particular role of the actor played in that relationship can be associated. If specified, it takes priority over the role that may be directly assigned to the person or organization.

EXAMPLE  An occupant (as an actor) may rent a flat (as a collection of spaces or a zone). This would be an application of this generic relationship.

Reference to the objects (or single object) on which the actor acts upon in a certain role (if given) is specified in the inherited RelatedObjects attribute.

HISTORY  New entity in IFC2.0. Has been renamed from IfcRelActsUpon in IFC2x.
Attribute definitions
#AttributeTypeCardinalityDescription C
7RelatingActorIfcActor[1:1] Reference to the information about the actor. It comprises the information about the person or organization and its addresses. X
8ActingRoleIfcActorRole[0:1] Role of the actor played within the context of the assignment to the object(s). X
Formal Propositions
RuleDescription
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
#AttributeTypeCardinalityDescriptionC
IfcRoot
1GlobalIdIfcGloballyUniqueId[1:1] Assignment of a globally unique identifier within the entire software world. X
2OwnerHistoryIfcOwnerHistory[0:1] 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.
X
3NameIfcLabel[0:1] 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[0:1] 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
6RelatedObjectsTypeIfcObjectTypeEnum[0:1] Particular type of the assignment relationship. It can constrain the applicable object types, used within the role of RelatedObjects. X
IfcRelAssignsToActor
7RelatingActorIfcActor[1:1] Reference to the information about the actor. It comprises the information about the person or organization and its addresses. X
8ActingRoleIfcActorRole[0:1] Role of the actor played within the context of the assignment to the object(s). X
Definitions applying to Common Use Definitions

Concept inheritance

#ConceptModel View
IfcRoot
Software IdentityCommon Use Definitions
Revision ControlCommon Use Definitions
Formal representations
XSD Specification
 <xs:element name="IfcRelAssignsToActor" type="ifc:IfcRelAssignsToActor" substitutionGroup="ifc:IfcRelAssigns" nillable="true"/>
 <xs:complexType name="IfcRelAssignsToActor">
  <xs:complexContent>
   <xs:extension base="ifc:IfcRelAssigns">
    <xs:sequence>
     <xs:element name="RelatingActor" type="ifc:IfcActor" nillable="true"/>
     <xs:element name="ActingRole" type="ifc:IfcActorRole" nillable="true" minOccurs="0"/>
    </xs:sequence>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>
EXPRESS Specification
ENTITY IfcRelAssignsToActor
 SUBTYPE OF (IfcRelAssigns);
  RelatingActor : IfcActor;
  ActingRole : OPTIONAL IfcActorRole;
 WHERE
  NoSelfReference : SIZEOF(QUERY(Temp <* SELF\IfcRelAssigns.RelatedObjects | RelatingActor :=: Temp)) = 0;
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

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