IFC 4.3.2.20251031 (IFC4X3_ADD2) under development

4.1.9.2.1 Project Template Definitions

属性集模板的声明，包括用作属性定义的属性模板。此类模板定义了适用的属性、它们的名称、描述、度量类型和属性类型（单个、枚举、有界列表或表值）。

下图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，下表展示了用户可采用的推荐通用使用模式列表。

G <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/IfcRelDeclares.htm'>IfcRelDeclares</a> IfcRelDeclares 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1] 5. RelatingContext [1:1] Type 6. RelatedDefinitions [1:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:Declares1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelDeclares.htm'>IfcRelDeclares</a>:RelatingContext0 IfcLabel_4 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:Phase1->IfcLabel_4:IfcLabel0 IfcLabel_5 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:ObjectType1->IfcLabel_5:IfcLabel0 IfcLabel_6 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcContext.htm'>IfcContext</a>:LongName1->IfcLabel_6:IfcLabel0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertySetTemplate.htm'>IfcPropertySetTemplate</a> IfcPropertySetTemplate 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasContext [0:1]      HasAssociations [0:?] 5. TemplateType [0:1] 6. ApplicableEntity [0:1] 7. HasPropertyTemplates [1:?]      Defines [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRelDeclares.htm'>IfcRelDeclares</a>:RelatedDefinitions1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertySetTemplate.htm'>IfcPropertySetTemplate</a>:IfcPropertySetTemplate0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertySetTemplateTypeEnum.htm'>IfcPropertySetTemplateTypeEnum</a> IfcPropertySetTemplateTypeEnum <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertySetTemplate.htm'>IfcPropertySetTemplate</a>:TemplateType1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertySetTemplateTypeEnum.htm'>IfcPropertySetTemplateTypeEnum</a>:IfcPropertySetTemplateTypeEnum0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIdentifier.htm'>IfcIdentifier</a> IfcIdentifier <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertySetTemplate.htm'>IfcPropertySetTemplate</a>:ApplicableEntity1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIdentifier.htm'>IfcIdentifier</a>:IfcIdentifier0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a> IfcSimplePropertyTemplate 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasContext [0:1]      HasAssociations [0:?]      PartOfComplexTemplate [0:?]      PartOfPsetTemplate [0:?] 5. TemplateType [0:1] 6. PrimaryMeasureType [0:1] 7. SecondaryMeasureType [0:1] 8. Enumerators [0:1] 9. PrimaryUnit [0:1] 10. SecondaryUnit [0:1] 11. Expression [0:1] 12. AccessState [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertySetTemplate.htm'>IfcPropertySetTemplate</a>:HasPropertyTemplates1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a>:IfcSimplePropertyTemplate0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplateTypeEnum.htm'>IfcSimplePropertyTemplateTypeEnum</a> IfcSimplePropertyTemplateTypeEnum <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a>:TemplateType1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplateTypeEnum.htm'>IfcSimplePropertyTemplateTypeEnum</a>:IfcSimplePropertyTemplateTypeEnum0 IfcLabel_0 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a>:PrimaryMeasureType1->IfcLabel_0:IfcLabel0 IfcLabel_1 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a>:SecondaryMeasureType1->IfcLabel_1:IfcLabel0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertyEnumeration.htm'>IfcPropertyEnumeration</a> IfcPropertyEnumeration      HasExternalReferences [0:?] 1. Name [1:1] 2. EnumerationValues [1:?] 3. Unit [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a>:Enumerators1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertyEnumeration.htm'>IfcPropertyEnumeration</a>:IfcPropertyEnumeration0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcStateEnum.htm'>IfcStateEnum</a> IfcStateEnum <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a>:AccessState1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcStateEnum.htm'>IfcStateEnum</a>:IfcStateEnum0 IfcUnit_0 IfcUnit <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a>:PrimaryUnit1->IfcUnit_0:IfcUnit0 IfcUnit_1 IfcUnit <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a>:SecondaryUnit1->IfcUnit_1:IfcUnit0 IfcLabel_3 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSimplePropertyTemplate.htm'>IfcSimplePropertyTemplate</a>:Expression1->IfcLabel_3:IfcLabel0 IfcLabel_2 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertyEnumeration.htm'>IfcPropertyEnumeration</a>:Name1->IfcLabel_2:IfcLabel0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcValue.htm'>IfcValue</a> IfcValue <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPropertyEnumeration.htm'>IfcPropertyEnumeration</a>:EnumerationValues1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcValue.htm'>IfcValue</a>:IfcValue0
Figure 4.1.9.2.1.A

General Usage

ApplicableEntity
IfcContext
表 4.1.9.2.1.B

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