Namespace Xbim.Ifc2x3.SharedFacilitiesElements Classes IfcAsset IfcFurnitureType IfcInventory IfcOccupant IfcRelOccupiesSpaces IfcServiceLife IfcServiceLifeFactor IfcSystemFurnitureElementType Enums IfcAsset.IfcAssetClause IfcInventory.IfcInventoryClause IfcInventoryTypeEnum IfcOccupant.IfcOccupantClause IfcOccupantTypeEnum IfcServiceLifeFactorTypeEnum IfcServiceLifeTypeEnum