生産内示方式を採用する単鎖多段サプライチェーンの挙動シミュレーション

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  • A Study on Behavioral Simulation of Single Chained Multi-Stage Supply Chain Planed by Advance Demand Information

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<p>Production system by advance demand information has the advantages of enabling manufacturers of finished products to respond to diversifying customer needs and to secure a stable and large quantity of various parts with short delivery times, and enabling parts suppliers to provide a stable supply without having to hold huge product inventories. On the other hand, the upstream companies in the production process need to produce and ship products more quickly to meet the delivery date of the final product, which increases uncertainty. Therefore, analyzing effects of variable factors, such as demand fluctuations and the gap between advance demand information and firm-order information, is necessary. In our previous study, we formulated the flow of products and information in a supply chain using advance demand information and constructed a simulator based on these formulations. In this study, we aimed to evaluate and investigate the effects of improving the whole supply chain by adjusting production and inventory quantities in the supply chain using advance demand information. Overtime costs and inventory costs are introduced into the simulator to evaluate the impact. Results of the simulation confirms that front-loaded production is a very effective measure as long as it can be handled, and that overtime work is also effective depending on the condition of late delivery penalties.</p>

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