International Society of Science and Applied Technologies |
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A Decision-Making Approach to Selecting Supplier Based on the Quality Evaluation of Process | ||||
Author | Kuen-Suan Chen
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Co-Author(s) | Chiao-Tzu Huang; Tsang-Chuan Chang
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Abstract | Supplier selection is a practical problem that challenges supply chain management in a variety of industries. Quality is the most critical criterion in selecting a supplier; therefore, in this study, we developed a supplier selection model based on process quality. In so doing, we employed the Six Sigma quality index Qpk as a tool to assess the process quality provided by suppliers. However, basing index estimation on the collection of sample data introduces uncertainty into the assessment of process quality. Therefore, to reduce the likelihood of assessment miscalculations, we derived the confidence interval of Qpk via mathematical programming and then used this interval to perform a pairwise comparison of suppliers. Our goal was to identify criteria that can be used to select the optimal suppliers for long-term collaboration and sustainable partnerships. A case study is also presented to demonstrate the practical implementation of the proposed method.
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Keywords | Supplier selection, Process quality, Six Sigma quality index, Confidence interval, Pairwise comparison | |||
Article #: RQD25-83 |
August 1-3, 2019 - Las Vegas, NV, U.S.A. |