In 1931, statistician Walter Shewhart developed a framework for "continuous improvement." What became known as the Shewhart Cycle outlined four key steps for improving processes: Plan-Do-Check-Act ...

COMMENTARY--In 1931, statistician Walter Shewhart developed a framework for "continuous improvement." What became known as the Shewhart Cycle outlined four key steps for improving processes: Plan ...

It is also known as the PDSA Cycle, The Deming Cycle, and the Shewhart Cycle. It is an integral tool of the System of Profound Knowledge™ as described by scholar and consultant, W. Edwards Deming.