Quality cost model improvement based on 6 σ management

Baoguang Bai and Jian Zhang

International Journal of Manufacturing Technology and Management, 2018, vol. 32, issue 4/5, 396-411

Abstract: 6σ management theory has been successfully used in the top enterprises around the world, such as Motorola and General Electronics However, a serious contradiction has found between the traditional quality cost theory and 6σ theory, e.g., when quality level approach to 'zero defect', total quality cost does not converge to infinite rapidly. It is contradicting with the main conclusion of traditional quality cost model. This paper optimised the traditional quality cost model with learning curve and 6σ management ideas. Through the continuous improvement of working processes and service quality, the first pass rate approach 100% gradually. The costs losses can be reduced greatly. The new quality cost model proposed in this paper is more suitable to the manufacturer and the modern quality concept. We also give the optimal quality level in different setting.

Keywords: 6 σ management; quality cost model; learning curve; zero defect; optimal quality level. (search for similar items in EconPapers)
Date: 2018
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