Natural language names
Weist Steuerung / Regelung / Einschränkung zu - Relation
Rel Assigns To Control
Assignation à contrôle
Change log
IFC2x3 to IFC4
      OwnerHistoryMODIFIEDInstantiation changed to OPTIONAL.
Semantic definitions at the entity
Entity definition

The objectified relationship IfcRelAssignsToControl handles the assignment of a control (represented by subtypes of IfcControl) to other objects (represented by subtypes of IfcObject, with the exception of controls).

EXAMPLE  The assignment of a performance history (as subtype of IfcControl) for a building service element (as subtype of IfcObject) is an application of this generic relationship.
HISTORY  New entity in IFC2.0.
IFC2x CHANGE Entity has been renamed from IfcRelControls.
Attribute definitions
#AttributeTypeCardinalityDescription G
7RelatingControlIfcControl Reference to the IfcControl that applies a control upon objects.X
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.
7RelatingControlIfcControl Reference to the IfcControl that applies a control upon objects.X
Definitions applying to General Usage

Concept inheritance

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

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcControl

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