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Production Planning and Scheduling Technology for Steel Manufacturing Process

The steel manufacturing process is a V-type production process that separates products from natural raw materials so as to satisfy product quality and delivery times of each order while orienting large lot variety of small lot orders, making large lots from each process. Because of the large-scale and complicated production process, the burden of production planning and scheduling work is high, and support needs by system technology are strong. In this paper, we describe the development status and future prospects of optimization algorithms to support decision making in our production planning and scheduling tasks.