Pareto Principle—the 80-20 Rule In management, the Pareto Principle, or the 80-20 Rule, means 20 percent of defects would cause 80 percent of the problems. Project managers know that 20 percent of the work (the first 10 percent and the last 10 percent) consume 80 percent of the time and resources. It is also an axiom of business management that "80% of sales come from 20% of clients". Moreover, if you scrutinize the items on your “To Do” list, chances are just a few of the items that are tied to important issues. While we may take satisfaction in crossing a large number of the smaller issues off our task lists, the 80/20 rule suggests we should focus on the few, larger items that will generate the most significant results. The list might not grow much shorter, but you will be practicing effective prioritization. Pareto's Principle or Pareto's Law is a useful tool to help you prioritize and manage the work in your life. Write a composition about how you understand the 80-20 Rule (At least 200 words.)