Another approach is DFSS didov (definition, identification, structural design, optimization, verification) (treichler, 2002). The approach is a special emerging discipline and related to the quality of the qualitative process of policy process. This approach is useful when developing a new product or a new process research and development, or when there is a like condition for six sigma level, or in an existing product / process redesign. The objective of this approach is to achieve the expected performance, reliability, and cost, which is a typical characteristic of an active six sigma. According to Mader (2002), "Six Sigma is a method of using the tools, training and measurement, in order to make the design of the organization"s products and processes in such a way as to meet customer expectations and possible" Six Sigma alpha Mu gamma "quality level. Sometimes this method converges with a DMADV like step as they are (http: / / www.tutorialspoint.com).
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