Deming-Shewhart Cycle
The American statistician William Edwards Deming, along with Andrew Walter Shewhart, invented PDCA (Plan-Do-Check-Act). It’s an iterative problem-solving process that can be used to improve other processes, and it is based on the scientific method Hypothesis-Experiment-Evaluation, which represents Plan-Do-Check-Act.
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Plan: You define your goals and the processes you need to deliver the expected results.
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Do: You implement the new process.
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Check: You measure the new process and compare the results to the expected outcome in order to find discrepancies.
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Act: You analyze the discrepancies and try to understand the root cause of ...
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