ABC analysis is a business term used to define an inventory categorization technique often used in materials management. It is also known as Selective Inventory Control.
The ABC classification process is an analysis of a range of objects, such as finished products, items lying in inventory or customers into three categories. It's a system of categorization, with similarities to Pareto analysis. Popularly known as the "80/20" rule, ABC concept is applied to inventory management as a rule-of-thumb. It says that about 80% of the Rupee value, consumption wise, of an inventory remains in about 20% of the items.
When carrying out an ABC analysis, inventory items are valued (item cost multiplied by quantity issued/consumed in period) with the results then ranked. The results are then grouped typically into three bands. These bands are called ABC codes.
1. "A class" inventory will typically contain items that account for 80% of total value, or 20% of total items. 2. "B class" inventory will have around 15% of total value, or 30% of total items. 3. "C class" inventory will account for the remaining 5%, or 50% of total items.
XYZ analysis is one of the basic supply chain techniques, often used to determine the inventory valuation inside a Store.
A system of categorization, with similarities to Pareto analysis, the method usually categorizes inventory into three bands. Although different criteria may be applied to each category the typical method of “scoring” an inventory item is that of annual stock value of said item
X class items represent 70% of the stock value (although they may account for 20% number wise) Y class items fall between 70% and 90% of the annual stock value. C class the remaining.
The results of the XYZ analysis provide information that helps evaluate how each inventory part should be monitored and controlled.
These controls are typically:
X class items which are critically important and...