Before looking at lean manufacturing or six sigma, look at ISO 9001:2000
Until you have an accurate picture of your processes and their capabilities, trying to apply lean manufacturing or six sigma is a waste of effort.
Also, consider whether these things are right for you. I have spoken to many people in this field, and there is much difference of opinion as to which is the best way to go, if either.
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Vote for something useful this time, vote to repeal the second law of thermodynamics!
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