ABC-классификация(A system for ranking discrete categories of items according to Pareto's 80/20 principle that states that a small percentage of items account for the largest fraction of significance; A system for classifying items based on their relative importance, such as by decreasing currency value and volume. For example, 10% of class A items might account for 70% of the currency value, while 70% of class B items might account for 10% of the currency value. The tightest controls are applied to the highest priority items (class A), and the loosest controls are applied to the lowest priority items (class C))
