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IfcRelAssignsToActor

Definition from IAI: This 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. An 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 (as a special association type) 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 IFC Release 2.0. Has been renamed from IfcRelActsUpon in IFC Release 2x.
ISSUE see issue and change log for changes made in IFC Release 2x.

EXPRESS specification:

ENTITY IfcRelAssignsToActor
SUBTYPE OF ( IfcRelAssigns);
RelatingActor  :  IfcActor;
ActingRole  :  OPTIONAL IfcActorRole;
WHERE
WR1  :  SIZEOF(QUERY(Temp <* SELF\IfcRelAssigns.RelatedObjects | 'IFCKERNEL.IFCACTOR' IN TYPEOF(Temp))) = 0;
END_ENTITY;

Attribute definitions:

RelatingActor  :  Reference to the information about the actor. It comprises the information about the person or organization and its addresses.
ActingRole  :  Role of the actor played within the context of the assignment to the object(s).

Formal Propositions:

WR1  :  The relationship shall not define actors as the related objects within the actor assignment relationship.

References (2):

Name Type Referred through Express-G
IfcActor Entity
Attribute 'IsActingUpon'
Diagram 6
IfcRelAssigns Entity
Subtype
Diagram 2

Inheritance graph

ENTITY IfcRelAssignsToActor;
ENTITY IfcRoot;
GlobalId  :  IfcGloballyUniqueId;
OwnerHistory  :  IfcOwnerHistory;
Name  :  OPTIONAL IfcLabel;
Description  :  OPTIONAL IfcText;
ENTITY IfcRelAssigns;
RelatedObjects  :  SET [1:?] OF IfcObject;
RelatedObjectsType  :  OPTIONAL IfcObjectTypeEnum;
ENTITY IfcRelAssignsToActor;
RelatingActor  :  IfcActor;
ActingRole  :  OPTIONAL IfcActorRole;
END_ENTITY;