D.2.1.181 IfcSystem

IfcSystemIfcSystemIfcGloballyUniqueIdIfcOwnerHistoryIfcPersonAndOrganizationIfcPersonIfcIdentifierIfcLabelIfcLabelIfcLabelIfcLabelIfcLabelIfcActorRoleIfcTelecomAddressIfcAddressTypeEnumIfcTextIfcLabelIfcLabelIfcLabelIfcLabelIfcURIReferenceIfcURIReferenceIfcOrganizationIfcIdentifierIfcLabelIfcTextIfcActorRoleIfcAddressIfcActorRoleIfcRoleEnumIfcLabelIfcTextIfcApplicationIfcStateEnumIfcChangeActionEnumIfcTimeStampIfcPersonAndOrganizationIfcApplicationIfcTimeStampIfcLabelIfcRelDefinesByPropertiesIfcPropertySetIfcPropertySingleValueIfcPropertyBoundedValueIfcPropertyEnumeratedValueIfcRelAssignsToGroupIfcProduct