Definition of Six Sigma Process

Six Sigma was introduced in the 19th-century but through the efforts of an engineer, it took its place in today's fast-moving business world. Six Sigma is a tool used to run the business process smoothly and also help in its improvement. Six Sigma not only establishes a culture of continuous process improvement but also offers tools and techniques that can reduce variances, eliminate errors and identify the causes of errors so that companies can develop better products. and consumer services.


In statistical term, six sigma is usually denoted with the Greek symbol "sigma" or "σ". It is of the bell curve-shaped attaching with a sigma that symbolizes its identity of a standard deviation.

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