“When You See Data, Doubt Them” – Dr. Kaoru Ishikawa

“To Measure = To Know” is one of the fundamental truths of quality management. That does not necessarily have to mean much: at some point in time people were fundamentally convinced that the earth was flat and/or that the sun turned around our planet. We now know that this is not really true or rather: really not true. Putting an equality sign between to measure and to know is not correct either. Both terms are not equal: they relate to each other as a mean to a purpose. A measurement can hel...
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