What does the Law of Focus state about activities in a process?

The Law of Focus, often associated with the Pareto Principle, indicates that a small number of activities or causes (specifically, 20%) typically account for the majority (about 80%) of the problems or inefficiencies in a process. This principle encourages practitioners to identify and prioritize these critical activities in order to effectively address the root causes of issues. By focusing on the 20% of activities that contribute to the majority of the problems, teams can implement strategic improvements that yield the greatest impact on overall process performance. This principle is central to Lean and Six Sigma methodologies, which emphasize the importance of identifying and eliminating waste and variation for improved efficiency.