The document discusses how the PDCA (Plan-Do-Check-Act) cycle is used as a tool for continuous improvement in the context of Total Quality Management (TQM). The PDCA cycle involves selecting a project, analyzing the current status, determining corrective actions, implementing those actions, checking the effects, and planning future improvements. This allows for continuous refinement through a cycle of planning, executing plans, observing outcomes, and adjusting plans accordingly. The PDCA cycle is presented as a powerful tool that can be used across sectors to help achieve the goals of TQM through an ongoing process of assessment and improvement.