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Combination of theory of constraints, root cause analysis and Six Sigma for quality improvement framework

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  • Ming-Chang Lee
  • To Chang

Abstract

Root cause analysis (RCA) could help understand better problems in maintenance with system viewpoint, discover the true root cause of failures, and other appropriate solutions to discard maintenance rework. Theory of constraints (TQC) could serve as the framework for continuous improvement, and Six Sigma could provide specific statistical tools and engineering techniques for implementing changes. But, the above three strategies have some limitations. Therefore, this paper studies the combination three distinct strategies, Six Sigma, TOC and RCA, for improving manufacturing system performance. We used the concepts of strength and weaknesses of theory of constraints, Six Sigma, for developing a Six Sigma quality improvement framework. A proposes integrated framework to illustrate how the three techniques can complement each other to improve performance.

Suggested Citation

  • Ming-Chang Lee & To Chang, 2012. "Combination of theory of constraints, root cause analysis and Six Sigma for quality improvement framework," International Journal of Productivity and Quality Management, Inderscience Enterprises Ltd, vol. 10(4), pages 447-463.
    • Handle: RePEc:ids:ijpqma:v:10:y:2012:i:4:p:447-463
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    Cited by:

    1. Agung Sutrisno & Hyuck Moo Kwon & Indra Gunawan & Steven Eldridge & Tzong Ru Lee, 2016. "Integrating SWOT analysis into the FMEA methodology to improve corrective action decision making," International Journal of Productivity and Quality Management, Inderscience Enterprises Ltd, vol. 17(1), pages 104-126.

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