PDCA (plan–do–check–act or plan–do–check–adjust) is an iterative four-step management method used in business for the control and continuous improvement of processes and products.[1] It is also known as the Deming Circle/Cycle/Wheel, the Shewhart Cycle, the control circle/cycle, or plan–do–study–act (PDSA). Another version of this PDCA cycle is OPDCA. The added “O” stands for observation or as some versions say: “Observe the current condition.” This emphasis on observation and current condition has currency with […]

