Process improvement models are frameworks used to identify and implement changes within a business process in order to improve its efficiency and effectiveness. These models provide a structure which enables organizations to evaluate their existing processes, identify areas in need of improvement, and develop an action plan for improvement. They are based on the idea that organizations can create better, more efficient processes by identifying and measuring performance, then making and implementing changes to increase efficiency and effectiveness. Examples of process improvement models include Lean, Six Sigma, and Kaizen. Lean focuses on eliminating waste in manufacturing and service processes, while Six Sigma aims to reduce defects and increase customer satisfaction. Kaizen, which means “change for the better” in Japanese, is a broad concept that emphasizes continuous improvement throughout the organization. Each of these models has its own set of principles and tools to guide the organization in making process improvements. Businesses use process improvement models