//건축법 시행령 34조 (직통계단의 설치) 2항3호 Check(EDBA_34_2_3){ Floor myFloor{ getFloorUsage()= “MultiUnitHouse” getObjectProperty(Floor.numberOfHousehold)>=4 OR getFloorUsage() = “BusinessFacility.Officetel” } getTotalFloorArea(myFloor.Room)>=300 m2 }