IfcRelAssignsToActor

Natural language names
Weist Akteur zu - Relation
Rel Assigns To Actor
Assignation à acteur
Change log
ItemSPFXMLChangeDescription
IFC2x3 to IFC4 4.0.0.0
    IfcRelAssignsToActor
      OwnerHistoryMODIFIEDInstantiation changed to OPTIONAL.
IFC4 Addendum 2 Technical Corrigendum 1 4.0.2.1
    IfcRelAssignsToActor
      RelatedObjectsTypeMODIFIEDStatus changed to Deprecated.
IFC4x1 Final 4.1.0.0
    IfcRelAssignsToActor
      RelatedObjectsTypeMODIFIEDStatus changed from Deprecated.
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 G
7RelatingActorIfcActor Reference to the information about the actor. It comprises the information about the person or organization and its addresses. X
8ActingRoleIfcActorRole? 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
#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
IfcRelAssignsToActor
7RelatingActorIfcActor Reference to the information about the actor. It comprises the information about the person or organization and its addresses. X
8ActingRoleIfcActorRole? Role of the actor played within the context of the assignment to the object(s). 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="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

References  References: IfcActor

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