| Summary: | 碩士 === 國立交通大學 === 管理學院碩士在職專班工業工程與管理組 === 94 === Dr. W. Edwards Deming proposed the famous PDCA Cycle in 1950; it has been provided a general model for several popular improvement-activities methodologies: for instance, QC-Story and Lean Six Sigma were members of them. Although each methodology has its strengths, there is no denying that some weakness is attached as well. In the study, we would like to propose a new improvement-activities methodology, based on the strength and tools of QC-Story & Lean Six Sigma, and tacked on some new elements to it for adapting every kind of improvement activities. The methodology is named “OPTIMAL methodology”, it is composed by seven phases: Open, Plan, Test, Improve, Monitor & control, Act, and Last & close. The methodology is designed to supply faster, cheaper and better platform for quality improvement activity. It’s useful to avoid the mistakes and the wastes of rework in time and cost. In the two cases study, we are exciting in seeing the new methodology can supply useful and flexible solutions for different requirements.
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