enum IFCRoleEnum { Supplier, Manufacturer, Contractor, Subcontractor, Architect, StructuralEngineer, CostEngineer, Client, BuildingOwner, BuildingOperator, MechanicalEngineer, ElectricalEngineer, ProjectManager, FacilitiesManager, CivilEngineer, CommissioningEngineer, Engineer, Owner, Consultant, ConstructionManager, FieldConstructionManager, Reseller, UserDefined };