After diagnosis comes action. But how do we ensure that execution is organized and that learnings feedback into planning? The PDCA cycle (Plan, Do, Check, Act) is a continuous improvement methodology developed by Walter A. Shewhart and popularized by W. Edwards Deming. It consists of planning, doing, checking, and acting. In the planning phase (Plan), we define objectives, metrics, and action plans; in the execution phase (Do), we implement; in the verification phase (Check), we compare results with goals; and, in the action phase (Act), we adjust the process and standardize improvements. For agile teams, PDCA functions as a continuous sprint retrospective; each iteration generates learning for the next.