Six Sigma
A data-driven business management philosophy designed to increase profitability by reducing process variation, eliminating waste, and increasing quality to levels that consistently meet or exceed customer expectations. The name "Six Sigma" derives from the statistical term for a level of standard deviation of no more than 3.4 defects per million opportunities (DPMO); a quality level of no more than 3.4 DPMO is the objective of businesses that use Six Sigma methodology.
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