The Integration of Cost and Capacity Considerations in Material Requirements Planning Systems
研究了在物料需求计划的两个阶段(主生产排程和物料清单处理)中,整合库存相关成本和产能限制的不同方法,发现整合方法显著影响库存成本、工作量变化等权衡,且主生产排程方法起主要作用。
ABSTRACT Within the sequential framework of material requirements planning (MRP), a master production schedule (MPS) of end‐item production is prepared and a bill‐of‐material processor is used to convert the MPS into a plan for needed subassemblies, parts, and materials. This study examines the impact of different procedures for considering inventory‐related costs and capacity limitations in the two phases of planning: master production scheduling and bill‐of‐material (BOM) processing. A total of nine procedures are considered for integrating the two phases of planning. The results indicate that the integrated procedures have a significant effect on the trade‐offs among inventory‐related costs, work load variations, over/under time costs, and excess work loads. Further, the results suggest that the method used to develop the MPS has the primary influence on these trade‐offs, but the method used by the BOM processor can sometimes have a moderating effect.