IfcDocumentInformationRelationship

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcDocumentInformationRelationship
Name	X	X	MODIFIED	Name changed from RelatingDocument to Name. Type changed from IfcDocumentInformation to IfcLabel. Instantiation changed to OPTIONAL.
Description	X	X	MODIFIED	Name changed from RelatedDocuments to Description. Type changed from IfcDocumentInformation to IfcText. Instantiation changed to OPTIONAL. Aggregation changed from SET to NONE.
RelatingDocument	X	X	MODIFIED	Name changed from RelationshipType to RelatingDocument. Type changed from IfcLabel to IfcDocumentInformation. Instantiation changed from OPTIONAL.
RelatedDocuments			ADDED
RelationshipType			ADDED

Semantic definitions at the entity

Entity definition

An IfcDocumentInformationRelationship is a relationship entity that enables a document to have the ability to reference other documents. It is used to describe relationships in which one document may reference one or more other sub documents or where a document is used as a replacement for another document (but where both the original and the replacing document need to be retained).

HISTORY New entity in IFC2x.

IFC4 CHANGE Subtyped from IfcResourceLevelRelationship, order of attributes changed.

Attribute definitions

#	Attribute	Type	Cardinality	Description	C
3	RelatingDocument	IfcDocumentInformation	[1:1]	The document that acts as the parent, referencing or original document in a relationship.	X
4	RelatedDocuments	IfcDocumentInformation	S[1:?]	The document that acts as the child, referenced or replacing document in a relationship.	X
5	RelationshipType	IfcLabel	[0:1]	Describes the type of relationship between documents. This could be sub-document, replacement etc. The interpretation has to be established in an application context.	X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	C
IfcResourceLevelRelationship
1	Name	IfcLabel	[0:1]	A name used to identify or qualify the relationship.	X
2	Description	IfcText	[0:1]	A description that may apply additional information about the relationship.	X
IfcDocumentInformationRelationship
3	RelatingDocument	IfcDocumentInformation	[1:1]	The document that acts as the parent, referencing or original document in a relationship.	X
4	RelatedDocuments	IfcDocumentInformation	S[1:?]	The document that acts as the child, referenced or replacing document in a relationship.	X
5	RelationshipType	IfcLabel	[0:1]	Describes the type of relationship between documents. This could be sub-document, replacement etc. The interpretation has to be established in an application context.	X

Formal representations

XSD Specification

 <xs:element name="IfcDocumentInformationRelationship" type="ifc:IfcDocumentInformationRelationship" substitutionGroup="ifc:IfcResourceLevelRelationship" nillable="true"/>

 <xs:complexType name="IfcDocumentInformationRelationship">

  <xs:complexContent>

   <xs:extension base="ifc:IfcResourceLevelRelationship">

    <xs:sequence>

     <xs:element name="RelatingDocument" type="ifc:IfcDocumentInformation" nillable="true"/>

     <xs:element name="RelatedDocuments">

      <xs:complexType>

       <xs:sequence>

        <xs:element ref="ifc:IfcDocumentInformation" maxOccurs="unbounded"/>

       </xs:sequence>

       <xs:attribute ref="ifc:itemType" fixed="ifc:IfcDocumentInformation"/>

       <xs:attribute ref="ifc:cType" fixed="set"/>

       <xs:attribute ref="ifc:arraySize" use="optional"/>

      </xs:complexType>

     </xs:element>

    </xs:sequence>

    <xs:attribute name="RelationshipType" type="ifc:IfcLabel" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcDocumentInformationRelationship

 SUBTYPE OF (IfcResourceLevelRelationship);

  RelatingDocument : IfcDocumentInformation;

  RelatedDocuments : SET [1:?] OF IfcDocumentInformation;

  RelationshipType : OPTIONAL IfcLabel;

END_ENTITY;

 EXPRESS-G diagram

	Dokumenteninformation - Relation
	Document Information Relationship
	Relation entre un document et des documents associés