Which quality improvement methodology focuses on testing and learning in small cycles?

The quality improvement methodology that emphasizes testing and learning in small cycles is PDSA, which stands for Plan-Do-Study-Act. This approach is designed to facilitate ongoing improvement through iterative cycles that allow for small-scale testing of changes before implementing them more broadly.

The PDSA cycle begins with planning a change or intervention (Plan), implementing it on a small scale (Do), observing the results and collecting data (Study), and then acting on what was learned to refine the change or to implement it more widely (Act). This continuous cycle of planning, performing, analyzing, and refining is integral to improving processes and outcomes within healthcare settings, including oncology.

While other methodologies like DMAIC, Lean, and Six Sigma are focused on improving processes, reducing waste, and ensuring quality, they do not emphasize the same iterative learning process in small cycles that characterizes PDSA. DMAIC (Define, Measure, Analyze, Improve, Control) is more structured and data-driven, primarily used in Six Sigma initiatives. Lean focuses on streamlining processes and reducing waste but does not specifically incorporate the cyclical learning approach. Six Sigma is mainly geared towards reducing defects and improving quality through statistical methods. PDSA's flexibility and focus on small-scale changes make