The Deming wheel, also known as the PDCA cycle, is a continuous improvement model developed by renowned statistician and management consultant, Dr. W. Edwards Deming. It consists of four stages – Plan, Do, Check, and Act – that are repeated in a continuous loop to drive quality and efficiency in an organization. The Plan stage involves setting goals and creating a plan to achieve them, while the Do stage involves implementing the plan and collecting data. In the Check stage, the data is analyzed to determine if the goals are being met, and in the Act stage, necessary changes are made to improve the process. This cyclical approach allows for constant evaluation and refinement, leading to continuous improvement and success. The Deming wheel is widely used in various industries to promote a culture of quality and excellence.