"All profound ideas are timeless. While the details may change, the underlying principles remain the same. Demingâ€™s fundamental ideas came, in part, from his association with Shewhart and his concept of an operational definition... For years I observed managers telling Deming all the good things that they were going to do and heard him respond with one of two questions: 'By what method?' or 'How will you know?' It is just that basic. Until you can answer these two questions, all you have is wishful thinking."
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