Choose Index below for a list of all words and phrases defined in this glossary.
X's - Six Sigma term for variables that are independent, root causes; as opposed to Y's which are dependent outputs of a process. Six Sigma works on measuring and improving X's, to see subsequent improvement in Y's. Y=f(X)
[Category=Quality ]
Source: The Quality Portal, 30 April 2011 08:19:10, http://thequalityportal.com/glossary/s.htm
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