The Plan, Do, Study, Act (PDSA) cycle is a continuous loop of planning, doing, checking (or studying), and acting. It provides a simple and effective approach for solving problems and managing change. The model is useful for testing improvement measures on a small scale before updating procedures and working practices.
PLAN: the change to be tested or implemented, including measurable outcomes
DO: carry out the test or change
STUDY: collect data before and after the change and reflect on the impact of the change and what was learned
ACT: plan the next change cycle or full implementation
