Description
The Six Sigma 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, six sigma means only 3.4 defects per million. The central idea behind
Six Sigma 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 Six Sigma team is called a black belt. Finally there is a
special elite group called Master Black Belts who supervise the Black Belts.
Compare also:
Jack Welch |
Kaizen |
Deming cycle |
Value Chain |
Just-in-time |
Value Stream Mapping
More methodologies
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