IFC 4.3.2.20241204 (IFC4X3_ADD2) under development

Annex A
(informative)

Inheritance listings

This annex contains listings of entity definitions organized by inheritance.

  1. IfcActorRole
  2. IfcAddress
    1. IfcPostalAddress
    2. IfcTelecomAddress
  3. IfcAlignmentParameterSegment
    1. IfcAlignmentCantSegment
    2. IfcAlignmentHorizontalSegment
    3. IfcAlignmentVerticalSegment
  4. IfcApplication
  5. IfcAppliedValue
    1. IfcCostValue
  6. IfcApproval
  7. IfcBoundaryCondition
    1. IfcBoundaryEdgeCondition
    2. IfcBoundaryFaceCondition
    3. IfcBoundaryNodeCondition
      1. IfcBoundaryNodeConditionWarping
  8. IfcConnectionGeometry
    1. IfcConnectionCurveGeometry
    2. IfcConnectionPointGeometry
      1. IfcConnectionPointEccentricity
    3. IfcConnectionSurfaceGeometry
    4. IfcConnectionVolumeGeometry
  9. IfcConstraint
    1. IfcMetric
    2. IfcObjective
  10. IfcCoordinateOperation
    1. IfcMapConversion
      1. IfcMapConversionScaled
    2. IfcRigidOperation
  11. IfcCoordinateReferenceSystem
    1. IfcGeographicCRS
    2. IfcProjectedCRS
  12. IfcDerivedUnit
  13. IfcDerivedUnitElement
  14. IfcDimensionalExponents
  15. IfcExternalInformation
    1. IfcClassification
    2. IfcDocumentInformation
    3. IfcLibraryInformation
  16. IfcExternalReference
    1. IfcClassificationReference
    2. IfcDocumentReference
    3. IfcExternallyDefinedHatchStyle
    4. IfcExternallyDefinedSurfaceStyle
    5. IfcExternallyDefinedTextFont
    6. IfcLibraryReference
  17. IfcGridAxis
  18. IfcIrregularTimeSeriesValue
  19. IfcLightDistributionData
  20. IfcLightIntensityDistribution
  21. IfcMaterialClassificationRelationship
  22. IfcMaterialDefinition
    1. IfcMaterial
    2. IfcMaterialConstituent
    3. IfcMaterialConstituentSet
    4. IfcMaterialLayer
      1. IfcMaterialLayerWithOffsets
    5. IfcMaterialLayerSet
    6. IfcMaterialProfile
      1. IfcMaterialProfileWithOffsets
    7. IfcMaterialProfileSet
  23. IfcMaterialList
  24. IfcMaterialUsageDefinition
    1. IfcMaterialLayerSetUsage
    2. IfcMaterialProfileSetUsage
      1. IfcMaterialProfileSetUsageTapering
  25. IfcMeasureWithUnit
  26. IfcMonetaryUnit
  27. IfcNamedUnit
    1. IfcContextDependentUnit
    2. IfcConversionBasedUnit
      1. IfcConversionBasedUnitWithOffset
    3. IfcSIUnit
  28. IfcObjectPlacement
    1. IfcGridPlacement
    2. IfcLinearPlacement
    3. IfcLocalPlacement
  29. IfcOrganization
  30. IfcOwnerHistory
  31. IfcPerson
  32. IfcPersonAndOrganization
  33. IfcPhysicalQuantity
    1. IfcPhysicalComplexQuantity
    2. IfcPhysicalSimpleQuantity
      1. IfcQuantityArea
      2. IfcQuantityCount
      3. IfcQuantityLength
      4. IfcQuantityNumber
      5. IfcQuantityTime
      6. IfcQuantityVolume
      7. IfcQuantityWeight
  34. IfcPresentationItem
    1. IfcColourRgbList
    2. IfcColourSpecification
      1. IfcColourRgb
    3. IfcCurveStyleFont
    4. IfcCurveStyleFontAndScaling
    5. IfcCurveStyleFontPattern
    6. IfcIndexedColourMap
    7. IfcPreDefinedItem
      1. IfcPreDefinedColour
        1. IfcDraughtingPreDefinedColour
      2. IfcPreDefinedCurveFont
        1. IfcDraughtingPreDefinedCurveFont
      3. IfcPreDefinedTextFont
        1. IfcTextStyleFontModel
    8. IfcSurfaceStyleLighting
    9. IfcSurfaceStyleRefraction
    10. IfcSurfaceStyleShading
      1. IfcSurfaceStyleRendering
    11. IfcSurfaceStyleWithTextures
    12. IfcSurfaceTexture
      1. IfcBlobTexture
      2. IfcImageTexture
      3. IfcPixelTexture
    13. IfcTextStyleForDefinedFont
    14. IfcTextStyleTextModel
    15. IfcTextureCoordinate
      1. IfcIndexedTextureMap
        1. IfcIndexedPolygonalTextureMap
        2. IfcIndexedTriangleTextureMap
      2. IfcTextureCoordinateGenerator
      3. IfcTextureMap
    16. IfcTextureVertex
    17. IfcTextureVertexList
  35. IfcPresentationLayerAssignment
    1. IfcPresentationLayerWithStyle
  36. IfcPresentationStyle
    1. IfcCurveStyle
    2. IfcFillAreaStyle
    3. IfcSurfaceStyle
    4. IfcTextStyle
  37. IfcProductRepresentation
    1. IfcMaterialDefinitionRepresentation
    2. IfcProductDefinitionShape
  38. IfcProfileDef
    1. IfcArbitraryClosedProfileDef
      1. IfcArbitraryProfileDefWithVoids
    2. IfcArbitraryOpenProfileDef
      1. IfcCenterLineProfileDef
    3. IfcCompositeProfileDef
    4. IfcDerivedProfileDef
      1. IfcMirroredProfileDef
    5. IfcOpenCrossProfileDef
    6. IfcParameterizedProfileDef
      1. IfcAsymmetricIShapeProfileDef
      2. IfcCShapeProfileDef
      3. IfcCircleProfileDef
        1. IfcCircleHollowProfileDef
      4. IfcEllipseProfileDef
      5. IfcIShapeProfileDef
      6. IfcLShapeProfileDef
      7. IfcRectangleProfileDef
        1. IfcRectangleHollowProfileDef
        2. IfcRoundedRectangleProfileDef
      8. IfcTShapeProfileDef
      9. IfcTrapeziumProfileDef
      10. IfcUShapeProfileDef
      11. IfcZShapeProfileDef
  39. IfcPropertyAbstraction
    1. IfcExtendedProperties
      1. IfcMaterialProperties
      2. IfcProfileProperties
    2. IfcPreDefinedProperties
      1. IfcReinforcementBarProperties
      2. IfcSectionProperties
      3. IfcSectionReinforcementProperties
    3. IfcProperty
      1. IfcComplexProperty
      2. IfcSimpleProperty
        1. IfcPropertyBoundedValue
        2. IfcPropertyEnumeratedValue
        3. IfcPropertyListValue
        4. IfcPropertyReferenceValue
        5. IfcPropertySingleValue
        6. IfcPropertyTableValue
    4. IfcPropertyEnumeration
  40. IfcRecurrencePattern
  41. IfcReference
  42. IfcRepresentation
    1. IfcShapeModel
      1. IfcShapeRepresentation
      2. IfcTopologyRepresentation
    2. IfcStyleModel
      1. IfcStyledRepresentation
  43. IfcRepresentationContext
    1. IfcGeometricRepresentationContext
      1. IfcGeometricRepresentationSubContext
  44. IfcRepresentationItem
    1. IfcGeometricRepresentationItem
      1. IfcAnnotationFillArea
      2. IfcBooleanResult
        1. IfcBooleanClippingResult
      3. IfcBoundingBox
      4. IfcCartesianPointList
        1. IfcCartesianPointList2D
        2. IfcCartesianPointList3D
      5. IfcCartesianTransformationOperator
        1. IfcCartesianTransformationOperator2D
          1. IfcCartesianTransformationOperator2DnonUniform
        2. IfcCartesianTransformationOperator3D
          1. IfcCartesianTransformationOperator3DnonUniform
      6. IfcCsgPrimitive3D
        1. IfcBlock
        2. IfcRectangularPyramid
        3. IfcRightCircularCone
        4. IfcRightCircularCylinder
        5. IfcSphere
      7. IfcCurve
        1. IfcBoundedCurve
          1. IfcBSplineCurve
            1. IfcBSplineCurveWithKnots
              1. IfcRationalBSplineCurveWithKnots
          2. IfcCompositeCurve
            1. IfcCompositeCurveOnSurface
              1. IfcBoundaryCurve
                1. IfcOuterBoundaryCurve
            2. IfcGradientCurve
            3. IfcSegmentedReferenceCurve
          3. IfcIndexedPolyCurve
          4. IfcPolyline
          5. IfcTrimmedCurve
        2. IfcConic
          1. IfcCircle
          2. IfcEllipse
        3. IfcLine
        4. IfcOffsetCurve
          1. IfcOffsetCurve2D
          2. IfcOffsetCurve3D
          3. IfcOffsetCurveByDistances
        5. IfcPcurve
        6. IfcPolynomialCurve
        7. IfcSpiral
          1. IfcClothoid
          2. IfcCosineSpiral
          3. IfcSecondOrderPolynomialSpiral
          4. IfcSeventhOrderPolynomialSpiral
          5. IfcSineSpiral
          6. IfcThirdOrderPolynomialSpiral
        8. IfcSurfaceCurve
          1. IfcIntersectionCurve
          2. IfcSeamCurve
      8. IfcDirection
      9. IfcFaceBasedSurfaceModel
      10. IfcFillAreaStyleHatching
      11. IfcFillAreaStyleTiles
      12. IfcGeometricSet
        1. IfcGeometricCurveSet
      13. IfcHalfSpaceSolid
        1. IfcBoxedHalfSpace
        2. IfcPolygonalBoundedHalfSpace
      14. IfcLightSource
        1. IfcLightSourceAmbient
        2. IfcLightSourceDirectional
        3. IfcLightSourceGoniometric
        4. IfcLightSourcePositional
          1. IfcLightSourceSpot
      15. IfcPlacement
        1. IfcAxis1Placement
        2. IfcAxis2Placement2D
        3. IfcAxis2Placement3D
        4. IfcAxis2PlacementLinear
      16. IfcPlanarExtent
        1. IfcPlanarBox
      17. IfcPoint
        1. IfcCartesianPoint
        2. IfcPointByDistanceExpression
        3. IfcPointOnCurve
        4. IfcPointOnSurface
      18. IfcSectionedSpine
      19. IfcSegment
        1. IfcCompositeCurveSegment
          1. IfcReparametrisedCompositeCurveSegment
        2. IfcCurveSegment
      20. IfcShellBasedSurfaceModel
      21. IfcSolidModel
        1. IfcCsgSolid
        2. IfcManifoldSolidBrep
          1. IfcAdvancedBrep
            1. IfcAdvancedBrepWithVoids
          2. IfcFacetedBrep
            1. IfcFacetedBrepWithVoids
        3. IfcSectionedSolid
          1. IfcSectionedSolidHorizontal
        4. IfcSweptAreaSolid
          1. IfcDirectrixCurveSweptAreaSolid
            1. IfcFixedReferenceSweptAreaSolid
              1. IfcDirectrixDerivedReferenceSweptAreaSolid
            2. IfcSurfaceCurveSweptAreaSolid
          2. IfcExtrudedAreaSolid
            1. IfcExtrudedAreaSolidTapered
          3. IfcRevolvedAreaSolid
            1. IfcRevolvedAreaSolidTapered
        5. IfcSweptDiskSolid
          1. IfcSweptDiskSolidPolygonal
      22. IfcSurface
        1. IfcBoundedSurface
          1. IfcBSplineSurface
            1. IfcBSplineSurfaceWithKnots
              1. IfcRationalBSplineSurfaceWithKnots
          2. IfcCurveBoundedPlane
          3. IfcCurveBoundedSurface
          4. IfcRectangularTrimmedSurface
        2. IfcElementarySurface
          1. IfcCylindricalSurface
          2. IfcPlane
          3. IfcSphericalSurface
          4. IfcToroidalSurface
        3. IfcSectionedSurface
        4. IfcSweptSurface
          1. IfcSurfaceOfLinearExtrusion
          2. IfcSurfaceOfRevolution
      23. IfcTessellatedItem
        1. IfcIndexedPolygonalFace
          1. IfcIndexedPolygonalFaceWithVoids
        2. IfcTessellatedFaceSet
          1. IfcPolygonalFaceSet
          2. IfcTriangulatedFaceSet
            1. IfcTriangulatedIrregularNetwork
      24. IfcTextLiteral
        1. IfcTextLiteralWithExtent
      25. IfcVector
    2. IfcMappedItem
    3. IfcStyledItem
    4. IfcTopologicalRepresentationItem
      1. IfcConnectedFaceSet
        1. IfcClosedShell
        2. IfcOpenShell
      2. IfcEdge
        1. IfcEdgeCurve
        2. IfcOrientedEdge
        3. IfcSubedge
      3. IfcFace
        1. IfcFaceSurface
          1. IfcAdvancedFace
      4. IfcFaceBound
        1. IfcFaceOuterBound
      5. IfcLoop
        1. IfcEdgeLoop
        2. IfcPolyLoop
        3. IfcVertexLoop
      6. IfcPath
      7. IfcVertex
        1. IfcVertexPoint
  45. IfcRepresentationMap
  46. IfcResourceLevelRelationship
    1. IfcApprovalRelationship
    2. IfcCurrencyRelationship
    3. IfcDocumentInformationRelationship
    4. IfcExternalReferenceRelationship
    5. IfcMaterialRelationship
    6. IfcOrganizationRelationship
    7. IfcPropertyDependencyRelationship
    8. IfcResourceApprovalRelationship
    9. IfcResourceConstraintRelationship
  47. IfcRoot
    1. IfcObjectDefinition
      1. IfcContext
        1. IfcProject
        2. IfcProjectLibrary
      2. IfcObject
        1. IfcActor
          1. IfcOccupant
        2. IfcControl
          1. IfcActionRequest
          2. IfcCostItem
          3. IfcCostSchedule
          4. IfcPerformanceHistory
          5. IfcPermit
          6. IfcProjectOrder
          7. IfcWorkCalendar
          8. IfcWorkControl
            1. IfcWorkPlan
            2. IfcWorkSchedule
        3. IfcGroup
          1. IfcAsset
          2. IfcInventory
          3. IfcStructuralLoadGroup
            1. IfcStructuralLoadCase
          4. IfcStructuralResultGroup
          5. IfcSystem
            1. IfcBuildingSystem
            2. IfcBuiltSystem
            3. IfcDistributionSystem
              1. IfcDistributionCircuit
            4. IfcStructuralAnalysisModel
            5. IfcZone
        4. IfcProcess
          1. IfcEvent
          2. IfcProcedure
          3. IfcTask
        5. IfcProduct
          1. IfcAnnotation
          2. IfcElement
            1. IfcBuiltElement
              1. IfcBeam
              2. IfcBearing
              3. IfcBuildingElementProxy
              4. IfcChimney
              5. IfcColumn
              6. IfcCourse
              7. IfcCovering
              8. IfcCurtainWall
              9. IfcDeepFoundation
                1. IfcCaissonFoundation
                2. IfcPile
              10. IfcDoor
              11. IfcEarthworksElement
                1. IfcEarthworksFill
                2. IfcReinforcedSoil
              12. IfcFooting
              13. IfcKerb
              14. IfcMember
              15. IfcMooringDevice
              16. IfcNavigationElement
              17. IfcPavement
              18. IfcPlate
              19. IfcRail
              20. IfcRailing
              21. IfcRamp
              22. IfcRampFlight
              23. IfcRoof
              24. IfcShadingDevice
              25. IfcSlab
              26. IfcStair
              27. IfcStairFlight
              28. IfcTrackElement
              29. IfcWall
                1. IfcWallStandardCase
              30. IfcWindow
            2. IfcCivilElement
            3. IfcDistributionElement
              1. IfcDistributionControlElement
                1. IfcActuator
                2. IfcAlarm
                3. IfcController
                4. IfcFlowInstrument
                5. IfcProtectiveDeviceTrippingUnit
                6. IfcSensor
                7. IfcUnitaryControlElement
              2. IfcDistributionFlowElement
                1. IfcDistributionChamberElement
                2. IfcEnergyConversionDevice
                  1. IfcAirToAirHeatRecovery
                  2. IfcBoiler
                  3. IfcBurner
                  4. IfcChiller
                  5. IfcCoil
                  6. IfcCondenser
                  7. IfcCooledBeam
                  8. IfcCoolingTower
                  9. IfcElectricGenerator
                  10. IfcElectricMotor
                  11. IfcEngine
                  12. IfcEvaporativeCooler
                  13. IfcEvaporator
                  14. IfcHeatExchanger
                  15. IfcHumidifier
                  16. IfcMotorConnection
                  17. IfcSolarDevice
                  18. IfcTransformer
                  19. IfcTubeBundle
                  20. IfcUnitaryEquipment
                3. IfcFlowController
                  1. IfcAirTerminalBox
                  2. IfcDamper
                  3. IfcDistributionBoard
                  4. IfcElectricDistributionBoard
                  5. IfcElectricTimeControl
                  6. IfcFlowMeter
                  7. IfcProtectiveDevice
                  8. IfcSwitchingDevice
                  9. IfcValve
                4. IfcFlowFitting
                  1. IfcCableCarrierFitting
                  2. IfcCableFitting
                  3. IfcDuctFitting
                  4. IfcJunctionBox
                  5. IfcPipeFitting
                5. IfcFlowMovingDevice
                  1. IfcCompressor
                  2. IfcFan
                  3. IfcPump
                6. IfcFlowSegment
                  1. IfcCableCarrierSegment
                  2. IfcCableSegment
                  3. IfcConveyorSegment
                  4. IfcDuctSegment
                  5. IfcPipeSegment
                7. IfcFlowStorageDevice
                  1. IfcElectricFlowStorageDevice
                  2. IfcTank
                8. IfcFlowTerminal
                  1. IfcAirTerminal
                  2. IfcAudioVisualAppliance
                  3. IfcCommunicationsAppliance
                  4. IfcElectricAppliance
                  5. IfcFireSuppressionTerminal
                  6. IfcLamp
                  7. IfcLightFixture
                  8. IfcLiquidTerminal
                  9. IfcMedicalDevice
                  10. IfcMobileTelecommunicationsAppliance
                  11. IfcOutlet
                  12. IfcSanitaryTerminal
                  13. IfcSignal
                  14. IfcSpaceHeater
                  15. IfcStackTerminal
                  16. IfcWasteTerminal
                9. IfcFlowTreatmentDevice
                  1. IfcDuctSilencer
                  2. IfcElectricFlowTreatmentDevice
                  3. IfcFilter
                  4. IfcInterceptor
            4. IfcElementAssembly
            5. IfcElementComponent
              1. IfcBuildingElementPart
              2. IfcDiscreteAccessory
              3. IfcFastener
              4. IfcImpactProtectionDevice
              5. IfcMechanicalFastener
              6. IfcReinforcingElement
                1. IfcReinforcingBar
                2. IfcReinforcingMesh
                3. IfcTendon
                4. IfcTendonAnchor
                5. IfcTendonConduit
              7. IfcSign
              8. IfcVibrationDamper
              9. IfcVibrationIsolator
            6. IfcFeatureElement
              1. IfcFeatureElementAddition
                1. IfcProjectionElement
              2. IfcFeatureElementSubtraction
                1. IfcEarthworksCut
                2. IfcOpeningElement
                3. IfcVoidingFeature
              3. IfcSurfaceFeature
            7. IfcFurnishingElement
              1. IfcFurniture
              2. IfcSystemFurnitureElement
            8. IfcGeographicElement
            9. IfcGeotechnicalElement
              1. IfcGeotechnicalAssembly
                1. IfcBorehole
                2. IfcGeomodel
                3. IfcGeoslice
              2. IfcGeotechnicalStratum
            10. IfcTransportationDevice
              1. IfcTransportElement
              2. IfcVehicle
            11. IfcVirtualElement
          3. IfcLinearElement
            1. IfcAlignmentCant
            2. IfcAlignmentHorizontal
            3. IfcAlignmentSegment
            4. IfcAlignmentVertical
          4. IfcPort
            1. IfcDistributionPort
          5. IfcPositioningElement
            1. IfcGrid
            2. IfcLinearPositioningElement
              1. IfcAlignment
            3. IfcReferent
          6. IfcSpatialElement
            1. IfcExternalSpatialStructureElement
              1. IfcExternalSpatialElement
            2. IfcSpatialStructureElement
              1. IfcBuildingStorey
              2. IfcFacility
                1. IfcBridge
                2. IfcBuilding
                3. IfcMarineFacility
                4. IfcRailway
                5. IfcRoad
              3. IfcFacilityPart
                1. IfcBridgePart
                2. IfcFacilityPartCommon
                3. IfcMarinePart
                4. IfcRailwayPart
                5. IfcRoadPart
              4. IfcSite
              5. IfcSpace
            3. IfcSpatialZone
          7. IfcStructuralActivity
            1. IfcStructuralAction
              1. IfcStructuralCurveAction
                1. IfcStructuralLinearAction
              2. IfcStructuralPointAction
              3. IfcStructuralSurfaceAction
                1. IfcStructuralPlanarAction
            2. IfcStructuralReaction
              1. IfcStructuralCurveReaction
              2. IfcStructuralPointReaction
              3. IfcStructuralSurfaceReaction
          8. IfcStructuralItem
            1. IfcStructuralConnection
              1. IfcStructuralCurveConnection
              2. IfcStructuralPointConnection
              3. IfcStructuralSurfaceConnection
            2. IfcStructuralMember
              1. IfcStructuralCurveMember
                1. IfcStructuralCurveMemberVarying
              2. IfcStructuralSurfaceMember
                1. IfcStructuralSurfaceMemberVarying
        6. IfcResource
          1. IfcConstructionResource
            1. IfcConstructionEquipmentResource
            2. IfcConstructionMaterialResource
            3. IfcConstructionProductResource
            4. IfcCrewResource
            5. IfcLaborResource
            6. IfcSubContractResource
      3. IfcTypeObject
        1. IfcTypeProcess
          1. IfcEventType
          2. IfcProcedureType
          3. IfcTaskType
        2. IfcTypeProduct
          1. IfcElementType
            1. IfcBuiltElementType
              1. IfcBeamType
              2. IfcBearingType
              3. IfcBuildingElementProxyType
              4. IfcChimneyType
              5. IfcColumnType
              6. IfcCourseType
              7. IfcCoveringType
              8. IfcCurtainWallType
              9. IfcDeepFoundationType
                1. IfcCaissonFoundationType
                2. IfcPileType
              10. IfcDoorType
              11. IfcFootingType
              12. IfcKerbType
              13. IfcMemberType
              14. IfcMooringDeviceType
              15. IfcNavigationElementType
              16. IfcPavementType
              17. IfcPlateType
              18. IfcRailType
              19. IfcRailingType
              20. IfcRampFlightType
              21. IfcRampType
              22. IfcRoofType
              23. IfcShadingDeviceType
              24. IfcSlabType
              25. IfcStairFlightType
              26. IfcStairType
              27. IfcTrackElementType
              28. IfcWallType
              29. IfcWindowType
            2. IfcCivilElementType
            3. IfcDistributionElementType
              1. IfcDistributionControlElementType
                1. IfcActuatorType
                2. IfcAlarmType
                3. IfcControllerType
                4. IfcFlowInstrumentType
                5. IfcProtectiveDeviceTrippingUnitType
                6. IfcSensorType
                7. IfcUnitaryControlElementType
              2. IfcDistributionFlowElementType
                1. IfcDistributionChamberElementType
                2. IfcEnergyConversionDeviceType
                  1. IfcAirToAirHeatRecoveryType
                  2. IfcBoilerType
                  3. IfcBurnerType
                  4. IfcChillerType
                  5. IfcCoilType
                  6. IfcCondenserType
                  7. IfcCooledBeamType
                  8. IfcCoolingTowerType
                  9. IfcElectricGeneratorType
                  10. IfcElectricMotorType
                  11. IfcEngineType
                  12. IfcEvaporativeCoolerType
                  13. IfcEvaporatorType
                  14. IfcHeatExchangerType
                  15. IfcHumidifierType
                  16. IfcMotorConnectionType
                  17. IfcSolarDeviceType
                  18. IfcTransformerType
                  19. IfcTubeBundleType
                  20. IfcUnitaryEquipmentType
                3. IfcFlowControllerType
                  1. IfcAirTerminalBoxType
                  2. IfcDamperType
                  3. IfcDistributionBoardType
                  4. IfcElectricDistributionBoardType
                  5. IfcElectricTimeControlType
                  6. IfcFlowMeterType
                  7. IfcProtectiveDeviceType
                  8. IfcSwitchingDeviceType
                  9. IfcValveType
                4. IfcFlowFittingType
                  1. IfcCableCarrierFittingType
                  2. IfcCableFittingType
                  3. IfcDuctFittingType
                  4. IfcJunctionBoxType
                  5. IfcPipeFittingType
                5. IfcFlowMovingDeviceType
                  1. IfcCompressorType
                  2. IfcFanType
                  3. IfcPumpType
                6. IfcFlowSegmentType
                  1. IfcCableCarrierSegmentType
                  2. IfcCableSegmentType
                  3. IfcConveyorSegmentType
                  4. IfcDuctSegmentType
                  5. IfcPipeSegmentType
                7. IfcFlowStorageDeviceType
                  1. IfcElectricFlowStorageDeviceType
                  2. IfcTankType
                8. IfcFlowTerminalType
                  1. IfcAirTerminalType
                  2. IfcAudioVisualApplianceType
                  3. IfcCommunicationsApplianceType
                  4. IfcElectricApplianceType
                  5. IfcFireSuppressionTerminalType
                  6. IfcLampType
                  7. IfcLightFixtureType
                  8. IfcLiquidTerminalType
                  9. IfcMedicalDeviceType
                  10. IfcMobileTelecommunicationsApplianceType
                  11. IfcOutletType
                  12. IfcSanitaryTerminalType
                  13. IfcSignalType
                  14. IfcSpaceHeaterType
                  15. IfcStackTerminalType
                  16. IfcWasteTerminalType
                9. IfcFlowTreatmentDeviceType
                  1. IfcDuctSilencerType
                  2. IfcElectricFlowTreatmentDeviceType
                  3. IfcFilterType
                  4. IfcInterceptorType
            4. IfcElementAssemblyType
            5. IfcElementComponentType
              1. IfcBuildingElementPartType
              2. IfcDiscreteAccessoryType
              3. IfcFastenerType
              4. IfcImpactProtectionDeviceType
              5. IfcMechanicalFastenerType
              6. IfcReinforcingElementType
                1. IfcReinforcingBarType
                2. IfcReinforcingMeshType
                3. IfcTendonAnchorType
                4. IfcTendonConduitType
                5. IfcTendonType
              7. IfcSignType
              8. IfcVibrationDamperType
              9. IfcVibrationIsolatorType
            6. IfcFurnishingElementType
              1. IfcFurnitureType
              2. IfcSystemFurnitureElementType
            7. IfcGeographicElementType
            8. IfcTransportationDeviceType
              1. IfcTransportElementType
              2. IfcVehicleType
          2. IfcSpatialElementType
            1. IfcSpatialStructureElementType
              1. IfcSpaceType
            2. IfcSpatialZoneType
        3. IfcTypeResource
          1. IfcConstructionResourceType
            1. IfcConstructionEquipmentResourceType
            2. IfcConstructionMaterialResourceType
            3. IfcConstructionProductResourceType
            4. IfcCrewResourceType
            5. IfcLaborResourceType
            6. IfcSubContractResourceType
    2. IfcPropertyDefinition
      1. IfcPropertySetDefinition
        1. IfcPreDefinedPropertySet
          1. IfcDoorLiningProperties
          2. IfcDoorPanelProperties
          3. IfcPermeableCoveringProperties
          4. IfcReinforcementDefinitionProperties
          5. IfcWindowLiningProperties
          6. IfcWindowPanelProperties
        2. IfcPropertySet
        3. IfcQuantitySet
          1. IfcElementQuantity
      2. IfcPropertyTemplateDefinition
        1. IfcPropertySetTemplate
        2. IfcPropertyTemplate
          1. IfcComplexPropertyTemplate
          2. IfcSimplePropertyTemplate
    3. IfcRelationship
      1. IfcRelAssigns
        1. IfcRelAssignsToActor
        2. IfcRelAssignsToControl
        3. IfcRelAssignsToGroup
          1. IfcRelAssignsToGroupByFactor
        4. IfcRelAssignsToProcess
        5. IfcRelAssignsToProduct
        6. IfcRelAssignsToResource
      2. IfcRelAssociates
        1. IfcRelAssociatesApproval
        2. IfcRelAssociatesClassification
        3. IfcRelAssociatesConstraint
        4. IfcRelAssociatesDocument
        5. IfcRelAssociatesLibrary
        6. IfcRelAssociatesMaterial
        7. IfcRelAssociatesProfileDef
      3. IfcRelConnects
        1. IfcRelConnectsElements
          1. IfcRelConnectsPathElements
          2. IfcRelConnectsWithRealizingElements
        2. IfcRelConnectsPortToElement
        3. IfcRelConnectsPorts
        4. IfcRelConnectsStructuralActivity
        5. IfcRelConnectsStructuralMember
          1. IfcRelConnectsWithEccentricity
        6. IfcRelContainedInSpatialStructure
        7. IfcRelCoversBldgElements
        8. IfcRelCoversSpaces
        9. IfcRelFillsElement
        10. IfcRelFlowControlElements
        11. IfcRelInterferesElements
        12. IfcRelPositions
        13. IfcRelReferencedInSpatialStructure
        14. IfcRelSequence
        15. IfcRelServicesBuildings
        16. IfcRelSpaceBoundary
          1. IfcRelSpaceBoundary1stLevel
            1. IfcRelSpaceBoundary2ndLevel
      4. IfcRelDeclares
      5. IfcRelDecomposes
        1. IfcRelAdheresToElement
        2. IfcRelAggregates
        3. IfcRelNests
        4. IfcRelProjectsElement
        5. IfcRelVoidsElement
      6. IfcRelDefines
        1. IfcRelDefinesByObject
        2. IfcRelDefinesByProperties
        3. IfcRelDefinesByTemplate
        4. IfcRelDefinesByType
  48. IfcSchedulingTime
    1. IfcEventTime
    2. IfcLagTime
    3. IfcResourceTime
    4. IfcTaskTime
      1. IfcTaskTimeRecurring
    5. IfcWorkTime
  49. IfcShapeAspect
  50. IfcStructuralConnectionCondition
    1. IfcFailureConnectionCondition
    2. IfcSlippageConnectionCondition
  51. IfcStructuralLoad
    1. IfcStructuralLoadConfiguration
    2. IfcStructuralLoadOrResult
      1. IfcStructuralLoadStatic
        1. IfcStructuralLoadLinearForce
        2. IfcStructuralLoadPlanarForce
        3. IfcStructuralLoadSingleDisplacement
          1. IfcStructuralLoadSingleDisplacementDistortion
        4. IfcStructuralLoadSingleForce
          1. IfcStructuralLoadSingleForceWarping
        5. IfcStructuralLoadTemperature
      2. IfcSurfaceReinforcementArea
  52. IfcTable
  53. IfcTableColumn
  54. IfcTableRow
  55. IfcTextureCoordinateIndices
    1. IfcTextureCoordinateIndicesWithVoids
  56. IfcTimePeriod
  57. IfcTimeSeries
    1. IfcIrregularTimeSeries
    2. IfcRegularTimeSeries
  58. IfcTimeSeriesValue
  59. IfcUnitAssignment
  60. IfcVirtualGridIntersection
  61. IfcWellKnownText