This assignment involves a comprehensive review of research studies that have utilized the Plan-Do-Study-Act (PDSA) method for quality improvement in various healthcare settings. The PDSA cycle is a widely used methodology for implementing changes and improving processes, but its effectiveness and rigour can vary depending on how it is applied. The systematic review aims to identify the key factors that influence the success of PDSA cycles in healthcare, including the characteristics of effective implementation, the role of leadership, and the impact on patient outcomes. By examining the existing literature on PDSA methodology, this review seeks to provide a deeper understanding of how quality improvement initiatives can be successfully implemented using this approach.