The IASSC ICYB (International Certified Yellow Belt) exam is a rigorous assessment designed to evaluate an individual's understanding of Lean Six Sigma methodologies and their application in process improvement. This exam covers a wide range of topics, including the fundamentals of Lean Six Sigma, process improvement techniques, statistical tools, and project management. Lean Six Sigma principles are introduced, emphasizing waste reduction and process efficiency. Participants learn about value-added and non-value-added activities, the 5S methodology for workplace organization, and the DMAIC (Define, Measure, Analyze, Improve, Control) problem-solving framework. Process mapping and flowcharting are essential skills, enabling the visualization and analysis of processes. Statistical concepts are introduced, covering descriptive statistics, data collection methods, and hypothesis testing. Participants learn to identify and interpret common statistical tools like control charts and Pareto charts. The exam delves into project management, covering project planning, resource allocation, and risk management. Participants learn to define project scope, set objectives, and create project timelines. Additionally, the exam explores the human aspect of process improvement, covering topics like change management, team dynamics, and leadership. Communication and collaboration skills are emphasized, as is the importance of stakeholder engagement.