ABC classification

A method of classifying products, used in inventory management, based on three classes. Class A groups 10 to 20% of items representing around 80% of stock value, for which specific management methods are put in place. Class B groups 15 to 20% of items representing around 15% of the value. Class C covers the remaining items, between 60% and 75% of references, whose value is around 5% and which are therefore monitored less closely.