What inventory classification system categorizes items by value and importance?

The inventory classification system that categorizes items by value and importance is ABC analysis. It divides stock into A, B, and C groups so managers can apply different levels of control.

A items are typically the most financially important and receive close monitoring, accurate records, frequent review, and careful replenishment decisions. B items have intermediate importance and receive moderate controls. C items are usually lower-value or less consequential individually, so organizations often manage them with simpler procedures.

ABC analysis is related to the Pareto principle: a relatively small share of inventory items often represents a large share of annual consumption value. However, the percentages are guidelines, not universal rules. One organization might classify 10% of items as A, while another uses different thresholds based on risk, demand, or operational priorities.

It is easy to confuse ABC with HML or XYZ analysis. HML focuses on unit price, while XYZ commonly examines demand or consumption variability. Pareto analysis is the broader principle that often motivates ABC classification, not usually the name of this inventory system.