| Summary: | 碩士 === 逢甲大學 === 工業工程與系統管理學研究所 === 94 === Six sigma management developed and promoted by Motorola is a philosophy for company-wide quality improvement. One of the most widely-applied six sigma approach for quality improvement is define-measure-analyze-improve-control (DMIAC) procedure. The purpose of this paper is to improve night-vision process by applying DMAIC procedure. Using quality improvement tools; such as QFD, flow chart, cause-and-effect diagram, and experimental design, the hidden costs in this process are identified and reduced. Further quality improvement includes improvement of optical-electronic bench capability, jig and parts redesign, and combination of work stations. Finally, the rework was eliminated thoroughly. In conclusions, adopting DMAIC procedure reduces time for night-vision process from 144 to 29 minute. This, in return, results in a remarkable reduction of production costs.
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