Define, measure, analyze DMAIC

DMAIC Define - measure - analyze - design - verify... 

The Six Sigma approach is composed by five steps, i.e. the DMAIC algorithm (Fig. 1) Define, Measure, Analyze, Improve and Control. 

Many readers will know that Six Sigma practitioners utilize a similar process. Its acronym is DMAIC, which stands for Define-Measure-Analyze-Improve-Control. This cycle is similar to PDCA either approach is valid. 

Six sigma Six sigma is one of the more recent popular approaches to QA that is based on a tight statistical approach to the production of a product. The name arises from a desire to limit the tolerance of a product to plus or minus six standard deviations and thus have only 3.4 defects per million. (This is the fraction outside - - 4.5 standard deviations from the mean the method allows for some measurement uncertainty.) In order for the statistics to hold, the system must be in statistical control and the defects must be random and normally distributed. There is a heavy reliance on control charts and the system is built around what to do if there is evidence for nonconformity. For a nonconforming product six sigma institutes an approach with the acronym DMAIC — define, measure, analyze, improve, control. This has been implemented in some organizations, such as pharmaceutical companies, which produce large volumes of chemicals. However, strict statistical control of chemical products is not always easy, and considerations of the measurement process also needs to be taken into account. 

DMAIC define, measure, analyze, improve, control... 

Some of the Six Sigma models are DMAIC (Define, Measure, Analyze, Improve, Control), which is used to improve the existing process, and DMADV (Define, Measure, Analyze, Design, Verify), which is used to employ the new products. 

Compare and contrast the Plan-Do-Check-Act (PDCA) and the Define, Measure, Analyze, Improve, and Control (DMAIC) system. 

DMAIC Define, Measure, Analyze, Improve, and Control... 

As described in detail by Rath and Strong (2000), an iterative five-step procedure is followed to progressively improve product quality. The five steps are (a) Define, (b) Measure, (c) Analyze, (d) Improve, and (e) Control, referred to by the acronym, DMAIC ... 

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