Business process analysis to obtain empirical lot sizing rule in printing process

We have addressed the improvement of production efficiency in an automobile parts supplier, and have revised the business processes to develop the knowledge-based production scheduling software as final goal. This paper focuses on the printing process from the whole of production processes, and describes the result of business process analysis to obtain the workerpsilas implicit knowledge. Until now the whole of business processes in the parts supplier have been examined by our previous researches, and we have mainly discussed the operation in printing process as a lot sizing scheduling problem only by theoretical aspect. However the previous approaches cannot flexibly respond to the change of production conditions such as the dispersion of order, the interrupt of urgent task, and the change of inventory quantity in spite of the actual field can handle these. Therefore this paper regards that the expertpsilas technical know-how of tacit knowledge in the actual printing field is mostly important factor in response to the change of production conditions, and the realities of lot sizing is grasped by the production performance records.