![]() ![]() The etymology is based on the Greek symbol "sigma" or "σ," a statistical term for measuring process deviation from the process mean or target. This is achieved by using a structured approach called DMAIC (Define, Measure, Analyze, Improve, Control) to identify and eliminate causes of variation and improve processes. The goal of Six Sigma is to achieve a level of quality that is nearly perfect, with only 3.4 defects per million opportunities. Six Sigma is a set of methodologies and tools used to improve business processes by reducing defects and errors, minimizing variation, and increasing quality and efficiency. It is used in industries such as manufacturing, healthcare, finance, and service industries to improve customer satisfaction, reduce costs, and increase profits. ![]() Six Sigma was developed by Motorola in the 1980s, and it has since been adopted by many other companies around the world, including General Electric, Toyota, and Amazon. A process that operates at six sigma has a failure rate of only 0.00034%, which means it produces virtually no defects. ![]() The term "Six Sigma" refers to a statistical measure of how far a process deviates from perfection. ![]()
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