| Definition | Type | Referenced Entity | 
|---|
|  IfcActuator |  ENTITY |  IfcObject | 
|  IfcAirTerminal |  ENTITY |  IfcObject | 
|  IfcAirTerminalBox |  ENTITY |  IfcObject | 
|  IfcAirToAirHeatRecovery |  ENTITY |  IfcObject | 
|  IfcAlarm |  ENTITY |  IfcObject | 
|  IfcAudioVisualAppliance |  ENTITY |  IfcObject | 
|  IfcBeam |  ENTITY |  IfcObject | 
|  IfcBearing |  ENTITY |  IfcObject | 
|  IfcBoiler |  ENTITY |  IfcObject | 
|  IfcBridge |  ENTITY |  IfcObject | 
|  IfcBridgePart |  ENTITY |  IfcObject | 
|  IfcBuildingElementPart |  ENTITY |  IfcObject | 
|  IfcBuildingElementProxy |  ENTITY |  IfcObject | 
|  IfcBuildingElementProxy |  ENTITY |  IfcRoot | 
|  IfcBuildingSystem |  ENTITY |  IfcObject | 
|  IfcBuiltElement |  ENTITY |  IfcObjectDefinition | 
|  IfcBuiltSystem |  ENTITY |  IfcObject | 
|  IfcBurner |  ENTITY |  IfcObject | 
|  IfcCableCarrierFitting |  ENTITY |  IfcObject | 
|  IfcCableCarrierSegment |  ENTITY |  IfcObject | 
|  IfcCableFitting |  ENTITY |  IfcObject | 
|  IfcCableSegment |  ENTITY |  IfcObject | 
|  IfcCaissonFoundation |  ENTITY |  IfcObject | 
|  IfcChiller |  ENTITY |  IfcObject | 
|  IfcChimney |  ENTITY |  IfcObject | 
|  IfcCoil |  ENTITY |  IfcObject | 
|  IfcColumn |  ENTITY |  IfcObject | 
|  IfcCommunicationsAppliance |  ENTITY |  IfcObject | 
|  IfcCompressor |  ENTITY |  IfcObject | 
|  IfcCondenser |  ENTITY |  IfcObject | 
|  IfcConstructionEquipmentResource |  ENTITY |  IfcObject | 
|  IfcConstructionMaterialResource |  ENTITY |  IfcObject | 
|  IfcConstructionProductResource |  ENTITY |  IfcObject | 
|  IfcController |  ENTITY |  IfcObject | 
|  IfcConveyorSegment |  ENTITY |  IfcObject | 
|  IfcCooledBeam |  ENTITY |  IfcObject | 
|  IfcCoolingTower |  ENTITY |  IfcObject | 
|  IfcCourse |  ENTITY |  IfcObject | 
|  IfcCovering |  ENTITY |  IfcObject | 
|  IfcCrewResource |  ENTITY |  IfcObject | 
|  IfcCurtainWall |  ENTITY |  IfcObject | 
|  IfcDamper |  ENTITY |  IfcObject | 
|  IfcDeepFoundation |  ENTITY |  IfcObject | 
|  IfcDefinitionSelect |  SELECT |  IfcObjectDefinition | 
|  IfcDiscreteAccessory |  ENTITY |  IfcObject | 
|  IfcDistributionBoard |  ENTITY |  IfcObject | 
|  IfcDistributionChamberElement |  ENTITY |  IfcObject | 
|  IfcDistributionSystem |  ENTITY |  IfcObject | 
|  IfcDoor |  ENTITY |  IfcObject | 
|  IfcDuctFitting |  ENTITY |  IfcObject | 
|  IfcDuctSegment |  ENTITY |  IfcObject | 
|  IfcDuctSilencer |  ENTITY |  IfcObject | 
|  IfcEarthworksCut |  ENTITY |  IfcObject | 
|  IfcEarthworksFill |  ENTITY |  IfcObject | 
|  IfcElectricAppliance |  ENTITY |  IfcObject | 
|  IfcElectricDistributionBoard |  ENTITY |  IfcObject | 
|  IfcElectricFlowStorageDevice |  ENTITY |  IfcObject | 
|  IfcElectricFlowTreatmentDevice |  ENTITY |  IfcObject | 
|  IfcElectricGenerator |  ENTITY |  IfcObject | 
|  IfcElectricMotor |  ENTITY |  IfcObject | 
|  IfcElectricTimeControl |  ENTITY |  IfcObject | 
|  IfcElementAssembly |  ENTITY |  IfcObject | 
|  IfcEngine |  ENTITY |  IfcObject | 
|  IfcEvaporativeCooler |  ENTITY |  IfcObject | 
|  IfcEvaporator |  ENTITY |  IfcObject | 
|  IfcEvent |  ENTITY |  IfcObject | 
|  IfcFacilityPartCommon |  ENTITY |  IfcObject | 
|  IfcFan |  ENTITY |  IfcObject | 
|  IfcFastener |  ENTITY |  IfcObject | 
|  IfcFilter |  ENTITY |  IfcObject | 
|  IfcFireSuppressionTerminal |  ENTITY |  IfcObject | 
|  IfcFlowInstrument |  ENTITY |  IfcObject | 
|  IfcFlowMeter |  ENTITY |  IfcObject | 
|  IfcFooting |  ENTITY |  IfcObject | 
|  IfcFurniture |  ENTITY |  IfcObject | 
|  IfcGeographicElement |  ENTITY |  IfcObject | 
|  IfcGeotechnicalStratum |  ENTITY |  IfcObject | 
|  IfcHeatExchanger |  ENTITY |  IfcObject | 
|  IfcHumidifier |  ENTITY |  IfcObject | 
|  IfcImpactProtectionDevice |  ENTITY |  IfcObject | 
|  IfcInterceptor |  ENTITY |  IfcObject | 
|  IfcJunctionBox |  ENTITY |  IfcObject | 
|  IfcKerb |  ENTITY |  IfcObject | 
|  IfcLaborResource |  ENTITY |  IfcObject | 
|  IfcLamp |  ENTITY |  IfcObject | 
|  IfcLightFixture |  ENTITY |  IfcObject | 
|  IfcLiquidTerminal |  ENTITY |  IfcObject | 
|  IfcMarineFacility |  ENTITY |  IfcObject | 
|  IfcMarinePart |  ENTITY |  IfcObject | 
|  IfcMechanicalFastener |  ENTITY |  IfcObject | 
|  IfcMedicalDevice |  ENTITY |  IfcObject | 
|  IfcMember |  ENTITY |  IfcObject | 
|  IfcMobileTelecommunicationsAppliance |  ENTITY |  IfcObject | 
|  IfcMooringDevice |  ENTITY |  IfcObject | 
|  IfcMotorConnection |  ENTITY |  IfcObject | 
|  IfcNavigationElement |  ENTITY |  IfcObject | 
|  IfcObject |  ENTITY |  IfcProduct | 
|  IfcObjectDefinition |  ENTITY |  IfcObject | 
|  IfcObjectPlacement |  ENTITY |  IfcProduct | 
|  IfcOccupant |  ENTITY |  IfcObject | 
|  IfcOpeningElement |  ENTITY |  IfcObject | 
|  IfcOutlet |  ENTITY |  IfcObject | 
|  IfcPavement |  ENTITY |  IfcObject | 
|  IfcPile |  ENTITY |  IfcObject | 
|  IfcPipeFitting |  ENTITY |  IfcObject | 
|  IfcPipeSegment |  ENTITY |  IfcObject | 
|  IfcPlate |  ENTITY |  IfcObject | 
|  IfcPositioningElement |  ENTITY |  IfcProduct | 
|  IfcProcedure |  ENTITY |  IfcObject | 
|  IfcProcedure |  ENTITY |  IfcRoot | 
|  IfcProduct |  ENTITY |  IfcStructuralActivity | 
|  IfcProductDefinitionShape |  ENTITY |  IfcProduct | 
|  IfcProductSelect |  SELECT |  IfcProduct | 
|  IfcProject |  ENTITY |  IfcRoot | 
|  IfcProject |  ENTITY |  IfcObjectDefinition | 
|  IfcProjectionElement |  ENTITY |  IfcObject | 
|  IfcPropertySet |  ENTITY |  IfcRoot | 
|  IfcPropertySetTemplate |  ENTITY |  IfcRoot | 
|  IfcProtectiveDevice |  ENTITY |  IfcObject | 
|  IfcProtectiveDeviceTrippingUnit |  ENTITY |  IfcObject | 
|  IfcProxy |  ENTITY |  IfcRoot | 
|  IfcPump |  ENTITY |  IfcObject | 
|  IfcRail |  ENTITY |  IfcObject | 
|  IfcRailing |  ENTITY |  IfcObject | 
|  IfcRailway |  ENTITY |  IfcObject | 
|  IfcRailwayPart |  ENTITY |  IfcObject | 
|  IfcRamp |  ENTITY |  IfcObject | 
|  IfcRampFlight |  ENTITY |  IfcObject | 
|  IfcReinforcedSoil |  ENTITY |  IfcObject | 
|  IfcReinforcingBar |  ENTITY |  IfcObject | 
|  IfcReinforcingMesh |  ENTITY |  IfcObject | 
|  IfcRelAggregates |  ENTITY |  IfcObjectDefinition | 
|  IfcRelAssigns |  ENTITY |  IfcObjectDefinition | 
|  IfcRelConnectsStructuralActivity |  ENTITY |  IfcStructuralActivity | 
|  IfcRelContainedInSpatialStructure |  ENTITY |  IfcProduct | 
|  IfcRelDefinesByObject |  ENTITY |  IfcObject | 
|  IfcRelDefinesByProperties |  ENTITY |  IfcObjectDefinition | 
|  IfcRelDefinesByType |  ENTITY |  IfcObject | 
|  IfcRelNests |  ENTITY |  IfcObjectDefinition | 
|  IfcRelPositions |  ENTITY |  IfcProduct | 
|  IfcRoad |  ENTITY |  IfcObject | 
|  IfcRoadPart |  ENTITY |  IfcObject | 
|  IfcRoof |  ENTITY |  IfcObject | 
|  IfcRoot |  ENTITY |  IfcObjectDefinition | 
|  IfcSanitaryTerminal |  ENTITY |  IfcObject | 
|  IfcSensor |  ENTITY |  IfcObject | 
|  IfcShadingDevice |  ENTITY |  IfcObject | 
|  IfcSign |  ENTITY |  IfcObject | 
|  IfcSignal |  ENTITY |  IfcObject | 
|  IfcSlab |  ENTITY |  IfcObject | 
|  IfcSolarDevice |  ENTITY |  IfcObject | 
|  IfcSpace |  ENTITY |  IfcObject | 
|  IfcSpaceHeater |  ENTITY |  IfcObject | 
|  IfcSpatialReferenceSelect |  SELECT |  IfcProduct | 
|  IfcSpatialStructureElement |  ENTITY |  IfcObjectDefinition | 
|  IfcSpatialZone |  ENTITY |  IfcObject | 
|  IfcStackTerminal |  ENTITY |  IfcObject | 
|  IfcStair |  ENTITY |  IfcObject | 
|  IfcStairFlight |  ENTITY |  IfcObject | 
|  IfcStructuralActivity |  ENTITY |  IfcStructuralReaction | 
|  IfcStructuralAnalysisModel |  ENTITY |  IfcObject | 
|  IfcStructuralCurveAction |  ENTITY |  IfcObject | 
|  IfcStructuralCurveAction |  ENTITY |  IfcStructuralActivity | 
|  IfcStructuralCurveMember |  ENTITY |  IfcObject | 
|  IfcStructuralCurveReaction |  ENTITY |  IfcObject | 
|  IfcStructuralLinearAction |  ENTITY |  IfcStructuralActivity | 
|  IfcStructuralLoadGroup |  ENTITY |  IfcObject | 
|  IfcStructuralPlanarAction |  ENTITY |  IfcStructuralActivity | 
|  IfcStructuralPointAction |  ENTITY |  IfcStructuralActivity | 
|  IfcStructuralPointReaction |  ENTITY |  IfcStructuralActivity | 
|  IfcStructuralReaction |  ENTITY |  IfcStructuralCurveReaction | 
|  IfcStructuralResultGroup |  ENTITY |  IfcObject | 
|  IfcStructuralSurfaceAction |  ENTITY |  IfcObject | 
|  IfcStructuralSurfaceAction |  ENTITY |  IfcStructuralActivity | 
|  IfcStructuralSurfaceMember |  ENTITY |  IfcObject | 
|  IfcStructuralSurfaceReaction |  ENTITY |  IfcObject | 
|  IfcSubContractResource |  ENTITY |  IfcObject | 
|  IfcSurfaceFeature |  ENTITY |  IfcObject | 
|  IfcSwitchingDevice |  ENTITY |  IfcObject | 
|  IfcSystemFurnitureElement |  ENTITY |  IfcObject | 
|  IfcTank |  ENTITY |  IfcObject | 
|  IfcTask |  ENTITY |  IfcObject | 
|  IfcTask |  ENTITY |  IfcRoot | 
|  IfcTendon |  ENTITY |  IfcObject | 
|  IfcTendonAnchor |  ENTITY |  IfcObject | 
|  IfcTendonConduit |  ENTITY |  IfcObject | 
|  IfcTrackElement |  ENTITY |  IfcObject | 
|  IfcTransformer |  ENTITY |  IfcObject | 
|  IfcTransportElement |  ENTITY |  IfcObject | 
|  IfcTubeBundle |  ENTITY |  IfcObject | 
|  IfcTypeObject |  ENTITY |  IfcRoot | 
|  IfcUniquePropertySetNames |  FUNCTION |  IfcRoot | 
|  IfcUnitaryControlElement |  ENTITY |  IfcObject | 
|  IfcUnitaryEquipment |  ENTITY |  IfcObject | 
|  IfcValve |  ENTITY |  IfcObject | 
|  IfcVehicle |  ENTITY |  IfcObject | 
|  IfcVibrationDamper |  ENTITY |  IfcObject | 
|  IfcVibrationIsolator |  ENTITY |  IfcObject | 
|  IfcVirtualElement |  ENTITY |  IfcObject | 
|  IfcVoidingFeature |  ENTITY |  IfcObject | 
|  IfcWall |  ENTITY |  IfcObject | 
|  IfcWasteTerminal |  ENTITY |  IfcObject | 
|  IfcWindow |  ENTITY |  IfcObject | 
|  IfcWorkCalendar |  ENTITY |  IfcObject | 
|  IfcWorkPlan |  ENTITY |  IfcObject | 
|  IfcWorkSchedule |  ENTITY |  IfcObject |