The "Plan-Do-Check-Act" (PDCA) cycle is a continuous improvement model used in various fields, including business and quality management. It consists of four stages: planning a change or improvement, implementing it (doing), checking the results against expectations, and acting on what was learned to refine the process. This iterative approach helps organizations enhance their operations and achieve better outcomes. In the planning phase, teams identify goals and develop strategies. During the doing phase, they execute the plan. The checking phase involves analyzing the results to see if the objectives were met. Finally, in the acting phase, teams make necessary adjustments and prepare for the next cycle, fostering ongoing improvement.