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This paper proposes the CAPD model of the <sub>-</sub><sub>x</sub> control chart with tardiness penalties in order to improve supplier quality of offering higher quality products in a short due time. The CAPD model is based on cases which start from (Check) searching the assignable cause occurring passively in the out-of-control state. In addition,(More)
In the supply chain system, prompt response of supplier to the feed-back trouble from the maker is important, and has become a key point of the supplier competitive edge. In the setting of the due time of the treatment to the various assignable causes, because idle cost and delay cost are the trade-off relation, setting the optimal due date becomes an(More)
This paper proposes an optimization model simultaneously deals with the tolerance allocation and visible manufacturing and contingent cost to satisfy the product design functions. The constrained optimization of product variation allocation (identifying of self-make process and purchasing quality/specification level) minimize the main costs, i.e. self-make(More)
This paper presents a design of the x control chart in view of quality, due time and cost to improve customer satisfaction of supplier. Recently, due to ever increasing competition in supplier markets, it is demanded to offer the low-cost and high quality product in short due time. Therefore, studying the balance of quality and the due time and cost has(More)
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