초록

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Abstract ▼ AI-Helper

Six Sigma is a rigorous, focused and highly effective implementation of proven quality principles and techniques. Incorporating elements from the work of many quality pioneers, Six Sigma aims for virtually error free business performance. Sigma is a letter in the Greek alphabet used by statisticians...

Six Sigma is a rigorous, focused and highly effective implementation of proven quality principles and techniques. Incorporating elements from the work of many quality pioneers, Six Sigma aims for virtually error free business performance. Sigma is a letter in the Greek alphabet used by statisticians to measure the variability in any process. A company"s performance is measured by the sigma level of their business processes. Traditionally companies accepted three or four sigma performance levels as the norm, despite the fact that these processes created between 6,200 and 67,000 problems per million opportunities! The Six Sigma standard of 3.4 problems per million opportunities is a response to the increasing expectations of customers and the increased complexity of modern products and processes. Six Sigma aims to raise customer satisfaction by reducing the number of defectives from a process to 3.4 defectives per million; such a process is a Six Sigma process. The progress towards the target is measured by the Sigma rating. In some areas Six Sigma is unattainable, but the objective of any project is to raise the Sigma rating. It starts with the recognition of a problem, and the defining of a project to cure or alleviate that problem The project is undertaken by a team using DMAIC - Define, Measure, Analyse, Improve, Control.

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