https://6sigma.com/philip-crosby-contributions-to-the-theory-of-process-improvement-and-six-sigma/ Six Sigma Certification and Training Fri, 28 Feb 2025 12:04:38 +0000 hourly 1 https://6sigma.com/philip-crosby-contributions-to-the-theory-of-process-improvement-and-six-sigma/#comment-26004 Mon, 06 Nov 2023 14:41:45 +0000 https://opexlearning.com/resources/?p=27873#comment-26004 Thanks such a good summary of this theory.

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