Munich Personal RePEc Archive

Metrica sigma: ano či ne ?

Tošenovský, Filip (2007): Metrica sigma: ano či ne ? Published in: Qmagazine No. ISSN 1213-0451


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When improving a process quality using Six Sigma methodology, sigma metric as a measure of quality is introduced. The metric is computed using a special table which converts defects per million opportunities (dpmo) to sigma level. The article shows that when sigma quality of a process is under 3,2, the metric can distort the original information about the process quality contained in dpmo.

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