Natural language names
Externe Information
External Information
Change log
Semantic definitions at the entity
Entity definition

An IfcExternalInformation is the identification of an information source that is not explicitly represented in the current model or in the project database (as an implementation of the current model). The IfcExternalInformation identifies the external source (classification, document, or library), but not the particular items such as a dictionary entry, a classification notation, or a document reference within the external source

The IfcExternalInformation is an abstract supertype of all external information entities.

HISTORY  New entity in IFC4.
Inherited definitions from supertypes
Entity inheritance IfcClassification IfcDocumentInformation IfcLibraryInformation
Attribute inheritance
Formal representations
XML Specification
 <xs:element name="IfcExternalInformation" type="ifc:IfcExternalInformation" abstract="true" substitutionGroup="ifc:Entity" nillable="true"/>
 <xs:complexType name="IfcExternalInformation" abstract="true">
   <xs:extension base="ifc:Entity"/>
EXPRESS Specification
ENTITY IfcExternalInformation
 ABSTRACT SUPERTYPE OF(ONEOF(IfcClassification, IfcDocumentInformation, IfcLibraryInformation));

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcResourceObjectSelect

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