IFC 4.3.2.20260714 (IFC4X3_ADD2) under development

4.1.9.3 Project Document Information（项目文档信息）

项目可定义外部文档，这些文档可用于将任意信息附加到同一项目或引用项目中的对象。

图 4.1.9.3.A 展示了应用此概念时使用的通用类和关系。 此外，概念可能对常见或标准化的行业实践和场景具有特殊意义。对于这些特定的使用场景，表 4.1.9.3.B 列出了用户可采用的推荐通用使用模式。

<a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a> IfcContext 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ObjectType [0:1] 6. LongName [0:1] 7. Phase [0:1] 8. RepresentationContexts [1:?] 9. UnitsInContext [0:1]      IsDefinedBy [0:?]      Declares [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelAssociatesDocument.htm'>IfcRelAssociatesDocument</a> IfcRelAssociatesDocument 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatedObjects [1:?] 6. RelatingDocument [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:HasAssociations1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelAssociatesDocument.htm'>IfcRelAssociatesDocument</a>:RelatedObjects0 IfcLabel_1 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:Phase1->IfcLabel_1:IfcLabel0 IfcLabel_2 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:ObjectType1->IfcLabel_2:IfcLabel0 IfcLabel_3 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:LongName1->IfcLabel_3:IfcLabel0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDocumentInformation.htm'>IfcDocumentInformation</a> IfcDocumentInformation 1. Identification [1:1] 2. Name [1:1] 3. Description [0:1] 4. Location [0:1] 5. Purpose [0:1] 6. IntendedUse [0:1] 7. Scope [0:1] 8. Revision [0:1] 9. DocumentOwner [0:1] 10. Editors [1:?] 11. CreationTime [0:1] 12. LastRevisionTime [0:1] 13. ElectronicFormat [0:1] 14. ValidFrom [0:1] 15. ValidUntil [0:1] 16. Confidentiality [0:1] 17. Status [0:1]      DocumentInfoForObjects [0:?]      HasDocumentReferences [0:?]      IsPointedTo [0:?]      IsPointer [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelAssociatesDocument.htm'>IfcRelAssociatesDocument</a>:RelatingDocument1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDocumentInformation.htm'>IfcDocumentInformation</a>:IfcDocumentInformation0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDocumentReference.htm'>IfcDocumentReference</a> IfcDocumentReference 1. Location [0:1] 2. Identification [0:1] 3. Name [0:1]      ExternalReferenceForResources [0:?] 4. Description [0:1] 5. ReferencedDocument [0:1]      DocumentRefForObjects [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelAssociatesDocument.htm'>IfcRelAssociatesDocument</a>:RelatingDocument1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDocumentReference.htm'>IfcDocumentReference</a>:IfcDocumentReference0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcURIReference.htm'>IfcURIReference</a> IfcURIReference <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDocumentInformation.htm'>IfcDocumentInformation</a>:Location1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcURIReference.htm'>IfcURIReference</a>:IfcURIReference0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIdentifier.htm'>IfcIdentifier</a> IfcIdentifier <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDocumentInformation.htm'>IfcDocumentInformation</a>:ElectronicFormat1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIdentifier.htm'>IfcIdentifier</a>:IfcIdentifier0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDocumentInformation.htm'>IfcDocumentInformation</a>:Identification1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIdentifier.htm'>IfcIdentifier</a>:IfcIdentifier0 IfcLabel_0 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDocumentInformation.htm'>IfcDocumentInformation</a>:Name1->IfcLabel_0:IfcLabel0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcText.htm'>IfcText</a> IfcText <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcDocumentInformation.htm'>IfcDocumentInformation</a>:Description1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcText.htm'>IfcText</a>:IfcText0
图 4.1.9.3.A

通用用法

ApplicableEntity
IfcContext
表 4.1.9.3.B

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