Pareto and others

[rderoeck@alphaind.com]

In Wheeler and Poling's book: "Building Continual
Improvement" they write about a Flat Pareto chart where
the 80/20 rule does not apply. They argue that flat Paretos
(a changing major defect category each month/week) is a
result of unpredictable processes upstream. Doesn't it
therefore seem logical that there is some relationship 
between the Pareto principle and commom/special cause
of variation?

Here to learn,
Rich DeRoeck
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