Namespace Xbim.Ifc4.ProcessExtension Classes IfcEvent IfcEventType IfcProcedure IfcProcedureType IfcRelSequence IfcTask IfcTaskType IfcWorkCalendar IfcWorkControl IfcWorkPlan IfcWorkSchedule Enums IfcEvent.IfcEventClause IfcEventType.IfcEventTypeClause IfcProcedure.IfcProcedureClause IfcProcedureType.IfcProcedureTypeClause IfcRelSequence.IfcRelSequenceClause IfcTask.IfcTaskClause IfcTaskType.IfcTaskTypeClause IfcWorkCalendar.IfcWorkCalendarClause IfcWorkPlan.IfcWorkPlanClause IfcWorkSchedule.IfcWorkScheduleClause