西格玛(英文PPT 53页)
6 Overview                                                               
“Six Sigma”
If we can’t express what we know in the form of numbers,  we really don’t know much about it. If we don’t know much about it, we can’t control it. If we can’t control it, we are at the mercy of chance.
Mikel J. HarryPresident & CEOSix Sigma Academy, Inc.
A Rigorous Method for Measuring & Controlling Our Quality
“...will bring GE to a whole new level of quality in a fraction of the  time it would have taken to climb the learning curve on our own.”
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