Six Sigma: a SWOT analysis

Six Sigma as an initiative for quality improvement and business excellence has been a subject of intense study and discussion in the past 15 years. Although concepts and templates, such as Define-Measure-Analyse-Improve-Control (DMAIC), have been frequently presented and advocated, there exist a number of different perspectives as to what fundamentally Six Sigma is capable of. In this paper, we examine the Strengths, Weaknesses, Opportunities and Threats (SWOT) associated with the application of the common version of Six Sigma. Some statistical, engineering and management aspects are considered. Thus, a realistic technical as well as management review of Six Sigma is made, 20 years after its inception.