A Case of Business Model Conversion Using Planning and Scheduling Application Having Intermediate Cutting Stock

摘要

This paper describes the experience of developing a production planning and scheduling system, which makes more than 1 700 kinds of end products from more than 300 kinds of large plates stocked in the intermediate warehouse. This system was mostly achieved with Constraint Logic Programming. As our business environments having changed, we ware in urgent need of converting our production method to the pull-type from the push-type. With the push-type production method, we have to keep our finish products in stock for three to four months and refill the stock in 30 days. The features of our system: it solved the complex network problem of 38 patterns found in the whole production process from cutting to shipment in generic way. At the former process, it also solved an optimization of the setups problem in the two-phase batch-type production.