毕业论文之仿真与六西格玛文献翻译.doc

SIX SIGMA AND SIMULATION, SO WHAT’S THE CORRELATION? ABSTRACT This paper will explore the fundamental relationships between Six Sigma and simulation. A basic overview of Six Sigma includes: 1. Six Sigma philosophy, 2. Basic tools, 3. Theory of Variation, 4. SPC, 5. Process capability, 6. Six Sigma infrastructure, and 7. DMAIC and DFSS processes. Simulation will be applied to the appropriate areas of the overview. Improvement in the robustness of the Six Sigma methodology will be discussed and the strengths of simulation will be presented as capable and preferable enhance ments to the Six Sigma processes. Quotes from Six Sigma and industry leaders will be presented. Simulation will be presented as an innovation tool enhancing the Six Sigma DMAIC and DFSS processes. 1 SIX SIGMA OVERVIEW Six Sigma has received wide acclaim as a methodology, process and vision to accomplish process improvement. Professor Larry S. Aft, PE, Chairman of the Industrial Engineering Department at Southern Polytechnic State University in a course delivered through the Center for Quality Excellence entitled Six Sigma Implementation, Champion and Green Belt Training states, “ Six Sigma is a customer focused, well defined problem solving methodology supported by a handful of powerful statistical tools.” He further states, “Continuous improvement is driven by the execution of carefully selected projects. The goal of the Six Sigma approach is to take small steps forward and no steps backward.” Aft further states that “the objective of Six Sigma is to reduce variation through continuous process improvement. This leads to customer satisfaction.” Motorola was instrumental in the initiation of Six Sigma. In fact, the phrase “Six Sigma” was coined by Motorola. They further stated that a defect is anything that results in customer dissatisfaction. General Electric (GE) has become an avid supporter of Six Sigma over recent years.According to their website, Six Sigma