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Part - II

Six Sigma levels and Process

The Greek letter for Sigma, , represents one standard deviation from the normal or average. The higher the sigma level the better the quality level.

Levels of Sigma Performance

Motorola developed a five phase approach to the Six Sigma Process called DMAIC which is a continuous process as the diagram shows until the highest level in the Six Sigma is achieved, i.e., 3.4 defects per million.

D: Define Opportunities
M: Measure Performance
A: Analyze Opportunity
I: Improve Performance
C: Control Performance

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* Contributed by -
Amit Chaddha,
BE (Meta), 2nd year MMS,
MNNIT Allahabad.