History of Six Sigma:
1. In 1987 when Bob Galvin was the chairman, Six Sigma was started as a methodology in Motorola
2.The term “Six Sigma” was coined by Bill Smith, who is now called as Father of Six Sig
3.Terms such as Black Belt and Green Belt were coined by Mikey Harry in relation to martial arts
What does Six Sigma mean practically?
1. Defect reduction
2. Yield improvement
3. Improved customer satisfaction
4. Higher net income
5. Continual improvement
Sigma Levels:
Sigma levels %Good %Defects (Parts Per Million)
1 30.9 691,462
2 69.1 308,537
3 93.3 66,807
4 99.38 6,210
5 99.977 233
6 99.99997 3.4
Characteristics of Six Sigma:
1. Customer centered
2. Process focused
3.Data Driven
4.Breakthrough performance gains
5.Validation through key business results
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