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Six Sigma is a process improvement strategy that improves Output quality by reducing Defects.

Six Sigma is named after a statistical concept where a process only produces 3.4 defects per million opportunities (DPMO). Six Sigma can therefore be also thought of as a goal, where processes not only encounter less defects, but do so consistently (low variability).

For a better understanding of Six Sigma and an overview of Lean Six Sigma, check out our Free Lean Six Sigma Yellow Belt Training and Green Belt Training.

Elisabeth Swan

Elisabeth is a Managing Partner & Executive Advisor at GoLeanSixSigma.com. For over 25 years, she's helped leading organizations like Amazon, Charles Schwab and Starwood Hotels & Resorts build problem-solving muscles with Lean Six Sigma to achieve their goals.