What is the Plan-Do-Check-Act (PDCA) Cycle and How is it Applied in ISO 9001:2015? In today’s competitive business environment, achieving and maintaining consistent quality is not just a goal—it’s a necessity. The Plan-Do-Check-Act (PDCA) cycle is one of the most powerful tools in quality management, forming the backbone of ISO 9001:2015. This continuous improvement model ensures that processes are not only effective but also adaptable to changes in customer...