Deming’s PDSA vs Lean PDCA

My LinkedIn reply to a post on Lean’s use of the Plan, Do Study, Act (PDCA) cycle.

Common Mistakes with the PDCA and also its History |Allaboutlean.com .  Overview of the main causes of failures in a PDCA which will cause lean projects to fail. Also, the history…

 

For a history on the PDCA and comparison of the PDCA to the Deming-based PDSA, I recommend the following article:  Foundation and History of the PDSA Cycle

The PDCA was developed in 1950. Deming improved upon the concept in 1986 and replaced the PDCA with the Plan, Do, Study, Act (PDSA) cycle. “Deming never embraced the PDCA.”

The “So what?”  For advocates of Continuous Quality Improvement (CQI), we need a better strategy for leveraging the various methodologies and tools.

Deming is the only expert that correctly identified that reducing variation from the ideal is THE key to CQI.

Broader description of the variation principle

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