3 Additional Six Sigma Levels
Besides the Sigma levels 1 to 6, we can actually also distinguish between 3 other levels of using Six SIgma:
A. Use Six Sigma as a statistical measurement unit (comparable to degrees or dollars)
B. Use it as as a structured, measurement-centered improvement system (this is where the DMAIC and DMADV methods come into play)
C. Use 6 Sigma as a management philosophy, in which the other 2 levels are used to establish a fact-based company culture which is aimed at continuous improvement of business and/or manufacturing processes.