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W. Edwards Deming

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Uncontrolled variation is the enemy of quality.
--
Attributed to Edward Deming (1980) in: Chang W. Kang, Paul H. Kvam (2012) Basic Statistical Tools for Improving Quality. p.19

 
W. Edwards Deming

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In Europe and in America, people are now more interested in the cost of quality and in systems of quality-audit. But in Japan, we are keeping very strong interest to improve quality by use of methods which you started....when we improve quality we also improve productivity, just as you told us in 1950 would happen.

 
W. Edwards Deming
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