Number & area of departments cllec#15 & 16ĬOMPUTERIZED RELATIONSHIP LAYOUT PLANNING (CORELAP) The Procedure adopted for using CORELAP:.Relationship chart with weights for the depts.The input requirements of CORELAP consists of:.The relationship chart provides the basis for the order in which different departments are placed.CORELAP constructs layouts by locating rectangular shaped departments.COMPUTERIZED RELATIONSHIP LAYOUT PLANNING (CORELAP)