Building a short-term production planning system for flexible manufacturing systems: an integration viewpoint

Abstract From the viewpoint of integration, the production objective of flexible manufacturing systems lFMSr should follow results of MRPsCRP. Thus, the planning goal of short-term production planning lSTPPr is to satisfy quantity and due date requirements determined by MRPsCRP. The STPP of FMS should cover part type selection, production ratio, process selection, process ratio, resource allocation, machine grouping, routing mix and loading problems. A STPP system is built to solve the STPP problem of an FMS having multiple machine types, each with multiple m.'ichinc units. This system adopts a variable-period flexible planning approach, using part mix and process selection flexibilities to solve STPP problems. It also provides flexibilities in its operations sequence and in the machine routing to the dynamic operation planning system.