# Index

Aggregation IfcObject, IfcObjectDefinition
Assigned Group
Assignment IfcObject, IfcObjectDefinition, IfcRepresentationItem, IfcUnitAssignment
Association IfcRelAssociates, IfcTypeObject, IfcObject, IfcObjectDefinition
At least one port
At least two ports expected
Classification IfcRelAssociatesClassification, IfcClassificationReferenceSelect, IfcClassificationSelect, IfcClassification, IfcClassificationReference
Composition IfcSpace
Connectivity
Conversion Units
Definition IfcDefinitionSelect, IfcRelAssociates, IfcRelDeclares, IfcTypeObject, IfcObject, IfcObjectDefinition, IfcProduct, IfcRelAggregates, IfcSpatialStructureElement, IfcElement, IfcPort, IfcSpace, IfcAirTerminalBoxTypeEnum, IfcFanTypeEnum, IfcHeatExchangerTypeEnum, IfcUnitaryEquipmentTypeEnum, IfcAirTerminalTypeEnum, IfcAirToAirHeatRecoveryTypeEnum, IfcChillerTypeEnum, IfcCoilTypeEnum, IfcDamperTypeEnum, IfcDuctSilencerTypeEnum, IfcEvaporativeCoolerTypeEnum, IfcEvaporatorTypeEnum, IfcDimensionCount, IfcAxis2Placement, IfcAxis2Placement3D, IfcCartesianPoint, IfcDirection, IfcGeometricRepresentationItem, IfcPlacement, IfcPoint, IfcRepresentationItem, IfcSIPrefix, IfcSIUnitName, IfcUnitEnum, IfcUnit, IfcConversionBasedUnit, IfcDimensionalExponents, IfcMeasureWithUnit, IfcNamedUnit, IfcSIUnit, IfcGeometricRepresentationContext, IfcRepresentationContext, IfcRepresentationContextSameWCS
Descriptions
Element Connectivity
Identity
IfcAirTerminal IfcAirTerminal, IfcAirTerminalBoxType, IfcAirTerminalType
IfcAirTerminalBox IfcAirTerminalBox, IfcAirTerminalBoxType
IfcAirTerminalBoxType IfcAirTerminalBoxType
IfcAirTerminalBoxTypeEnum IfcAirTerminalBoxTypeEnum
IfcAirTerminalType IfcAirTerminalType
IfcAirTerminalTypeEnum IfcAirTerminalTypeEnum
IfcAirToAirHeatRecovery IfcHeatExchanger, IfcAirToAirHeatRecovery, IfcAirToAirHeatRecoveryType
IfcAirToAirHeatRecoveryType IfcAirToAirHeatRecoveryType
IfcAirToAirHeatRecoveryTypeEnum IfcAirToAirHeatRecoveryTypeEnum
IfcApplication IfcApplication
IfcAxis2Placement IfcAxis2Placement, IfcAxis2Placement3D, IfcGeometricRepresentationItem
IfcAxis2Placement3D IfcAxis2Placement3D
IfcCartesianPoint IfcCartesianPoint, IfcGeometricRepresentationItem
IfcChangeActionEnum IfcChangeActionEnum
IfcChiller IfcChiller, IfcChillerType
IfcChillerType IfcChillerType
IfcChillerTypeEnum IfcChillerTypeEnum
IfcClassification IfcRelAssociatesClassification, IfcClassificationReferenceSelect, IfcClassificationSelect, IfcClassification, IfcClassificationReference
IfcClassificationReference IfcClassificationReferenceSelect, IfcClassificationSelect, IfcClassification, IfcClassificationReference
IfcClassificationReferenceSelect IfcClassificationReferenceSelect, IfcClassificationReference
IfcClassificationSelect IfcRelAssociatesClassification, IfcClassificationSelect
IfcCoil IfcCoilType, IfcCoil
IfcCoilType IfcCoilType
IfcCoilTypeEnum IfcCoilTypeEnum
IfcContext IfcContext, IfcObject, IfcObjectDefinition, IfcProject
IfcConversionBasedUnit IfcConversionBasedUnit, IfcConversionBasedUnitWithOffset
IfcConversionBasedUnitWithOffset IfcConversionBasedUnitWithOffset
IfcDamper IfcDamper, IfcDamperType
IfcDamperType IfcDamperType
IfcDamperTypeEnum IfcDamperTypeEnum
IfcDefinitionSelect IfcDefinitionSelect
IfcDimensionalExponents IfcConversionBasedUnitWithOffset, IfcDimensionalExponents
IfcDimensionCount IfcDimensionCount
IfcDirection IfcDirection, IfcGeometricRepresentationItem
IfcDistributionElement IfcDistributionElement, IfcDistributionElementType, IfcRelConnectsPorts, IfcRelConnectsPortToElement, IfcDistributionSystem
IfcDistributionElementType IfcDistributionElement, IfcDistributionElementType
IfcDistributionFlowElement IfcDistributionFlowElement, IfcDistributionFlowElementType
IfcDistributionFlowElementType IfcDistributionFlowElementType
IfcDistributionPort IfcSystem, IfcDistributionPort, IfcDistributionSystem
IfcDistributionSystem IfcDistributionSystem
IfcDuctFitting IfcDuctFitting
IfcDuctSegment IfcDuctSegment
IfcDuctSilencer IfcDuctSilencer, IfcDuctSilencerType
IfcDuctSilencerType IfcDuctSilencerType
IfcDuctSilencerTypeEnum IfcDuctSilencerTypeEnum
IfcElement IfcProduct, IfcElement, IfcElementType, IfcPort, IfcRelConnectsPortToElement
IfcElementType IfcElementType, IfcPort
IfcEnergyConversionDevice IfcEnergyConversionDevice, IfcEnergyConversionDeviceType
IfcEnergyConversionDeviceType IfcEnergyConversionDevice, IfcEnergyConversionDeviceType
IfcEvaporativeCooler IfcEvaporativeCooler, IfcEvaporativeCoolerType
IfcEvaporativeCoolerType IfcEvaporativeCoolerType
IfcEvaporativeCoolerTypeEnum IfcEvaporativeCoolerTypeEnum
IfcEvaporator IfcEvaporator, IfcEvaporatorType
IfcEvaporatorType IfcEvaporatorType
IfcEvaporatorTypeEnum IfcEvaporatorTypeEnum
IfcExternalInformation IfcExternalInformation
IfcExternalReference IfcClassificationReference, IfcExternalReference
IfcFan IfcFan, IfcFanType
IfcFanType IfcFanType
IfcFanTypeEnum IfcFanTypeEnum
IfcFlowController IfcFlowController, IfcFlowControllerType
IfcFlowControllerType IfcFlowController, IfcFlowControllerType
IfcFlowFitting IfcFlowFitting
IfcFlowMovingDevice IfcFlowMovingDevice, IfcFlowMovingDeviceType
IfcFlowMovingDeviceType IfcFlowMovingDevice, IfcFlowMovingDeviceType
IfcFlowSegment IfcFlowSegment
IfcFlowTerminal IfcFlowTerminal, IfcFlowTerminalType
IfcFlowTerminalType IfcFlowTerminal, IfcFlowTerminalType
IfcFlowTreatmentDevice IfcFlowTreatmentDevice, IfcFlowTreatmentDeviceType
IfcFlowTreatmentDeviceType IfcFlowTreatmentDevice, IfcFlowTreatmentDeviceType
IfcGeometricRepresentationContext IfcGeometricRepresentationContext, IfcRepresentationContextSameWCS
IfcGeometricRepresentationItem IfcGeometricRepresentationItem, IfcRepresentationItem
IfcGloballyUniqueId IfcGloballyUniqueId
IfcGroup IfcGroup, IfcRelAssignsToGroup, IfcZone, IfcElement, IfcDistributionSystem
IfcHeatExchanger IfcHeatExchanger, IfcHeatExchangerType
IfcHeatExchangerType IfcHeatExchangerType
IfcHeatExchangerTypeEnum IfcHeatExchangerTypeEnum
IfcHumidifier IfcHumidifier
IfcIdentifier IfcIdentifier, IfcLabel
IfcLabel IfcIdentifier, IfcLabel
IfcLengthMeasure IfcLengthMeasure
IfcMeasureWithUnit IfcConversionBasedUnitWithOffset, IfcMeasureWithUnit
IfcNamedUnit IfcUnitEnum, IfcUnit, IfcNamedUnit
IfcObject IfcDefinitionSelect, IfcRelAssociates, IfcRelAssociatesClassification, IfcRelDeclares, IfcTypeObject, IfcObject, IfcObjectDefinition, IfcRelAggregates, IfcRelAssigns, IfcRelAssignsToGroup, IfcDistributionSystem
IfcObjectDefinition IfcDefinitionSelect, IfcTypeObject, IfcObject, IfcObjectDefinition, IfcRelAggregates
IfcOrganization IfcOrganization
IfcOwnerHistory IfcOwnerHistory
IfcPerson IfcPerson, IfcChangeActionEnum
IfcPersonAndOrganization IfcPersonAndOrganization, IfcChangeActionEnum
IfcPlacement IfcPlacement
IfcPoint IfcPoint
IfcPort IfcPort, IfcRelConnectsPorts
IfcProduct IfcRelAssociates, IfcRelDeclares, IfcGroup, IfcTypeProduct, IfcProduct, IfcRelAssigns, IfcSystem, IfcElement, IfcPort, IfcRepresentationItem
IfcProject IfcContext, IfcRelDeclares, IfcObject, IfcObjectDefinition, IfcProject, IfcSingleProjectInstance, IfcSpatialStructureElement, IfcCoilType, IfcDamperType, IfcDuctSilencerType, IfcEvaporativeCoolerType, IfcEvaporatorType, IfcFanType, IfcHeatExchangerType, IfcUnitaryEquipmentType, IfcAirTerminalBoxType, IfcAirTerminalType, IfcAirToAirHeatRecoveryType, IfcChillerType, IfcClassificationSelect, IfcUnitAssignment, IfcGeometricRepresentationContext
IfcReal IfcReal
IfcRelAggregates IfcRelDeclares, IfcRelDecomposes, IfcObjectDefinition, IfcRelAggregates, IfcSpatialStructureElement, IfcElement, IfcSpace, IfcDistributionSystem
IfcRelAssigns IfcGroup, IfcObjectDefinition, IfcProduct, IfcRelAssigns, IfcRelAssignsToGroup, IfcSystem, IfcZone, IfcDistributionSystem
IfcRelAssignsToGroup IfcRelAssignsToGroup, IfcSystem, IfcZone, IfcDistributionSystem
IfcRelAssociates IfcRelAssociates, IfcRelAssociatesClassification, IfcTypeObject, IfcObjectDefinition, IfcElement
IfcRelAssociatesClassification IfcRelAssociatesClassification
IfcRelationship IfcRelationship
IfcRelConnects IfcRelConnects, IfcPort, IfcRelConnectsPorts, IfcRelConnectsPortToElement, IfcDistributionFlowElement, IfcDistributionFlowElementType, IfcDistributionPort
IfcRelConnectsPorts IfcPort, IfcRelConnectsPorts, IfcRelConnectsPortToElement
IfcRelConnectsPortToElement IfcPort, IfcRelConnectsPorts, IfcRelConnectsPortToElement, IfcDistributionFlowElement, IfcDistributionFlowElementType, IfcDistributionPort
IfcRelDeclares IfcContext, IfcRelDeclares, IfcObjectDefinition, IfcCoilType, IfcDamperType, IfcDuctSilencerType, IfcEvaporativeCoolerType, IfcEvaporatorType, IfcFanType, IfcHeatExchangerType, IfcUnitaryEquipmentType, IfcAirTerminalBoxType, IfcAirTerminalType, IfcAirToAirHeatRecoveryType, IfcChillerType
IfcRelDecomposes IfcRelDecomposes, IfcGroup, IfcRelAggregates
IfcRelDefines IfcRelDefines, IfcRelDefinesByType, IfcTypeObject, IfcTypeProduct, IfcObject, IfcProduct, IfcElement, IfcFlowSegment
IfcRelDefinesByType IfcRelDefines, IfcRelDefinesByType, IfcTypeObject, IfcTypeProduct, IfcObject, IfcProduct, IfcElement, IfcFlowSegment
IfcRepresentationContext IfcRepresentationContext
IfcRepresentationContextSameWCS IfcRepresentationContextSameWCS
IfcRepresentationItem IfcRepresentationItem
IfcRoot IfcRoot
IfcSingleProjectInstance IfcProject, IfcSingleProjectInstance
IfcSIPrefix IfcSIPrefix
IfcSIUnit IfcConversionBasedUnit, IfcSIUnit
IfcSIUnitName IfcSIUnitName
IfcSpace IfcRelAssociates, IfcSpatialStructureElement, IfcZone, IfcSpace
IfcSpatialElement IfcProduct, IfcSpatialElement, IfcDistributionSystem
IfcSpatialStructureElement IfcRelDeclares, IfcSpatialStructureElement, IfcZone, IfcSpace, IfcSpatialElement
IfcStateEnum IfcStateEnum
IfcSystem IfcSystem, IfcZone, IfcDistributionSystem, IfcClassificationSelect
IfcText IfcText
IfcTimeStamp IfcTimeStamp
IfcTypeObject IfcRelAssociates, IfcRelAssociatesClassification, IfcRelDeclares, IfcTypeObject, IfcRelAssignsToGroup
IfcTypeProduct IfcTypeProduct, IfcProduct, IfcDistributionElementType, IfcElementType
IfcUnit IfcUnitaryEquipmentType, IfcUnitEnum, IfcUnit, IfcUnitAssignment
IfcUnitaryEquipment IfcUnitaryEquipment, IfcUnitaryEquipmentType
IfcUnitaryEquipmentType IfcUnitaryEquipmentType
IfcUnitaryEquipmentTypeEnum IfcUnitaryEquipmentTypeEnum
IfcUnitAssignment IfcUnitAssignment
IfcUnitEnum IfcUnitEnum
IfcValue IfcValue
IfcZone IfcZone
Object Typing
Port Requirements
Ports to be twinned
Predefined Type expected
Product Type
Project IfcContext, IfcRelDeclares, IfcObject, IfcObjectDefinition, IfcProject, IfcSingleProjectInstance, IfcSpatialStructureElement, IfcCoilType, IfcDamperType, IfcDuctSilencerType, IfcEvaporativeCoolerType, IfcEvaporatorType, IfcFanType, IfcHeatExchangerType, IfcUnitaryEquipmentType, IfcAirTerminalBoxType, IfcAirTerminalType, IfcAirToAirHeatRecoveryType, IfcChillerType, IfcClassificationSelect, IfcUnitAssignment, IfcGeometricRepresentationContext
Project Context
Project Declaration
Project Units
Revision Control
Roots
SI Units
Spatial Decomposition