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What is Six Sigma?

Six Sigma is a quality and business improvement philosophy which was originally developed by Motorola during the eighties. The term Six Sigma (also written 6σ) has its origin in mathematics where Sigma means standard deviation (a measure for spread in a set of data).

On long term, a Six Sigma process has no more than 3,4 defect units per one million produced.


 

 

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