Plan: Identify an opportunity for improvement and plan for change. This involves setting objectives, establishing processes needed to deliver results, and determining the resources required. Do: Implement the plan on a small scale to test the changes. This step is about executing the plan while collecting data for analysis. Check: Review and analyze the results of the test to see if the desired outcome was achieved. This involves comparing the data collected against the objectives set in the planning phase. Act: If the test was successful, implement the change on a larger scale. If not, make adjustments and repeat the cycle to refine the process.