Enhanced evaluation method of sigma level in Six-sigma activities

This paper deals w ith alternative measurement method for determine the sigma level in Six sigma activities. Determining the sigma level in the DFSS based Six sigma project is the key factor of the whole project performance because the sigma level is the single number that indicates the level of project success based on CTQ that determined in the Six sigma projects. Tractable results are obtained by using statistical congruent method and concept of Takuchi method. The Six-sigma project has been completed is demonstrated as a case study. Alternative method are applied to find sigma level more efficiently.