Today, I will introduce a continuous improvement tool - the PDCA Deming Cycle Model. PDCA is the four stages of quality management, namely Plan, Do, Check and Act. In management activities, it is required to make plans, implement plans, check the implementation effects, and then incorporate successful ones into the standards, and leave unsuccessful ones to the next cycle. It can help you manage projects, keep your eyes on the goal, and optimize and correct them while working hard to execute until success.