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6Σ Model

Quality Management:Summary of the 6 Sigma Approach. Abstract




The Six Sigma (SS) model is a highly disciplined approach that helps companies focus on developing and delivering near-perfect products and services. It is based on the statistical work of Joseph Juran, a Rumanian-born US pioneer of quality management. The word "Sigma" is a Greek letter used for a statistical term that measures how far a given process deviates from perfection (standards deviation). The higher the sigma number, the closer to perfection. One sigma is not very good, SS means only 3.4 defects per million. The central idea behind SS is that if you can measure how many "defects" you have in a process, you can systematically figure out how to eliminate them and get as close to "zero defects" as possible.


The Japanese origin of Six Sigma can still be seen by the system of "belts" it uses. If you are a newbie and go on a basic training, you get a green belt. Anyone who has the responsibility for leading a SS team is called a black belt. Finally there is a special elite group called Master Black Belts who supervise the Black Belts.

Compare with Six Sigma: Jack Welch  |  Kaizen  |  Deming cycle  |  Value Chain  |  Just-in-time  |  Value Stream Mapping


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