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The plan–do–check–act cycle. PDCA or plan–do–check–act (sometimes called plan–do–check–adjust) is an iterative design and management method used in business for the control and continual improvement of processes and products. [1] It is also known as the Shewhart cycle, or the control circle/cycle.
The plan–do–check–act cycle is an example of a continual improvement process. The PDCA (plan, do, check, act) or (plan, do, check, adjust) cycle supports continuous improvement and kaizen. It provides a process for improvement which can be used since the early design (planning) stage of any process, system, product or service.
Iterative design has long been used in engineering fields. One example is the plan–do–check–act cycle implemented in the 1960s. Most New product development or existing product improvement programs have a checking loop which is used for iterative purposes.
The Plan-Do-Check-Act (PDCA) cycle, often referred to as the Deming Cycle, is a scientific method for testing concepts and putting changes into action that helps make better decisions. The focus on small-scale plan testing initially, which lowers the possibility of broad problems and encourages fault avoidance, is what distinguishes PDCA.
PDCA — plan, do, check, act cycle for quality control purposes. (Six Sigma's DMAIC method (define, measure, analyse, improve, control) may be viewed as a particular implementation of this.) Quality circle — a group (people oriented) approach to improvement.
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The PDCA cycle [3] Preventive action is any proactive method used to determine potential discrepancies before they occur and to ensure that they do not happen (thereby including, for example, preventive maintenance, management review or other common forms of risk avoidance). Corrective and preventive actions include stages for investigation ...