The production system of the food factory is basically a make-to-stock production. Therefore, to achieve efficient production, the integration of demand, production, and stock information is essential. In this paper, we propose a production planning method based on the demand prediction in order to decrease the stock in the factory of Japanese traditional food ‘Tsukudani’. In the proposed method, the demand is first predicted according to the shipment records, then the material requirement planning and the capacity requirement planning are done based on the demand prediction. Finally, we carry out numerical experiments to validate the effectiveness of the proposed method.

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