IfcLibraryInformation

Item	SPF	XML	Change	Description
IFC2x3 to IFC4 4.0.0.0
IfcLibraryInformation
Publisher			MODIFIED	Type changed from IfcOrganization to IfcActorSelect.
VersionDate	X	X	MODIFIED	Type changed from IfcCalendarDate to IfcDateTime.
Location	X	X	MODIFIED	Name changed from LibraryReference to Location. Type changed from IfcLibraryReference to IfcURIReference. Aggregation changed from SET to NONE.
Description			ADDED

Semantic definitions at the entity

Entity definition

An IfcLibraryInformation describes a library where a library is a structured store of information, normally organized in a manner which allows information lookup through an index or reference value. IfcLibraryInformation provides the library Name and optional Description, Version, VersionDate and Publisher attributes. A Location may be added for electronic access to the library.

In a broder sense, IfcLibraryInformation includes the meta data for capture the revision information when checking in library and other data into a revision control system.

HISTORY New entity in IFC2x.

IFC4 CHANGE Location and Description attributes added; Publisher and VersionDate data type changed; HasLibraryReferences inverse attribute added (previous LibraryReference changed to inverse).

Attribute definitions

#	Attribute	Type	Cardinality	Description	G
1	Name	IfcLabel		The name which is used to identify the library.	X
2	Version	IfcLabel	?	Identifier for the library version used for reference.	X
3	Publisher	IfcActorSelect	?	Information of the organization that acts as the library publisher. IFC4 CHANGE The data type has been changed to IfcActorSelect.	X
4	VersionDate	IfcDateTime	?	Date of the referenced version of the library. IFC4 CHANGE The data type has been changed to IfcDateTime, the date and time string according to ISO8601.	X
5	Location	IfcURIReference	?	Resource identifier or locator, provided as URI, URN or URL, of the library information for online references. IFC4 CHANGE New attribute added at the end of the attribute list.	X
6	Description	IfcText	?	Additional description provided for the library revision information. IFC4 CHANGE New attribute added at the end of the attribute list.	X
	LibraryInfoForObjects	IfcRelAssociatesLibrary @RelatingLibrary	S[0:?]	The library information with which objects are associated. IFC4 CHANGE New inverse attribute.	X
	HasLibraryReferences	IfcLibraryReference @ReferencedLibrary	S[0:?]	The library references to which the library information applies.	X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	G
IfcExternalInformation
IfcLibraryInformation
1	Name	IfcLabel		The name which is used to identify the library.	X
2	Version	IfcLabel	?	Identifier for the library version used for reference.	X
3	Publisher	IfcActorSelect	?	Information of the organization that acts as the library publisher. IFC4 CHANGE The data type has been changed to IfcActorSelect.	X
4	VersionDate	IfcDateTime	?	Date of the referenced version of the library. IFC4 CHANGE The data type has been changed to IfcDateTime, the date and time string according to ISO8601.	X
5	Location	IfcURIReference	?	Resource identifier or locator, provided as URI, URN or URL, of the library information for online references. IFC4 CHANGE New attribute added at the end of the attribute list.	X
6	Description	IfcText	?	Additional description provided for the library revision information. IFC4 CHANGE New attribute added at the end of the attribute list.	X
	LibraryInfoForObjects	IfcRelAssociatesLibrary @RelatingLibrary	S[0:?]	The library information with which objects are associated. IFC4 CHANGE New inverse attribute.	X
	HasLibraryReferences	IfcLibraryReference @ReferencedLibrary	S[0:?]	The library references to which the library information applies.	X

Formal representations

XML Specification

 <xs:element name="IfcLibraryInformation" type="ifc:IfcLibraryInformation" substitutionGroup="ifc:IfcExternalInformation" nillable="true"/>

 <xs:complexType name="IfcLibraryInformation">

  <xs:complexContent>

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

    <xs:sequence>

     <xs:element name="Publisher" nillable="true" minOccurs="0">

      <xs:complexType>

       <xs:group ref="ifc:IfcActorSelect"/>

      </xs:complexType>

     </xs:element>

    </xs:sequence>

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

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

    <xs:attribute name="VersionDate" type="ifc:IfcDateTime" use="optional"/>

    <xs:attribute name="Location" type="ifc:IfcURIReference" use="optional"/>

    <xs:attribute name="Description" type="ifc:IfcText" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcLibraryInformation

 SUBTYPE OF (IfcExternalInformation);

  Name : IfcLabel;

  Version : OPTIONAL IfcLabel;

  Publisher : OPTIONAL IfcActorSelect;

  VersionDate : OPTIONAL IfcDateTime;

  Location : OPTIONAL IfcURIReference;

  Description : OPTIONAL IfcText;

 INVERSE

  LibraryInfoForObjects : SET [0:?] OF IfcRelAssociatesLibrary FOR RelatingLibrary;

  HasLibraryReferences : SET [0:?] OF IfcLibraryReference FOR ReferencedLibrary;

END_ENTITY;

 EXPRESS-G diagram

	Bibliothek
	Library Information
	Information de bibliothèque