PRODUCTION/PURCHASE MANAGEMENT PROCESSING SYSTEM AND METHOD

A production/purchase management processing system is provided which includes a master production schedule which describes a production planning of each of a plurality of kinds of products independently for each period. A product construction/item master is provided in the system for describing information related to parts which form the product for each of the products. A stock/remaining order information source of the system describes stock quantity and remaining orders for the items which represent the product or the part. A production planning processor reads the contents of the master production schedule, the product construction/item master and the stock/remaining order information source and outputs a purchase planning order and a production planning order which are generated based on the read contents. The system further includes a reorganization processor which outputs a reorganization production planning order for at least one item which is included in the production planning order based on processes carried out in the production planning processor and the reorganization processor.