Abc Analysis Essay

1502 Words Oct 21st, 2014 7 Pages
ABC analysis (Inventory)
In supply chain, ABC analysis is an inventory categorization method which consists in dividing items into three categories, A, B and C: A being the most valuable items, C being the least valuable ones. This method aims to draw managers’ attention on the critical few (Aitems) and not on the trivial many (C-items).

Prioritization of the management attention
Inventory optimization is critical in order to keep costs under control within the supply chain. Yet, in order to get the most from management efforts, it is efficient to focus on items that cost most to the business. The Pareto principle states that 80% of the overall consumption value is based on only 20% of total items. In other words, demand is not evenly
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3. List out all the items and arrange them in the descending value. (Annual Value) 4. Accumulate value and add up number of items and calculate percentage on total inventory in value and in number. 5. Draw a curve of percentage items and percentage value. 6. Mark off from the curve the rational limits of A, B and C categories.

eCommerce example

The graph above illustrates the yearly sales distribution of a US eCommerce in 2011 for all products that have been sold at least one. Products are ranked starting with the highest sales volumes. Out of 17000 references:
  

Top 2500 products (Top 15%) represent 70% of the sales. Next 4000 products (Next 25%) represent 20% of the sales. Bottom 10500 products (Bottom 60%) represents 10% of the sales.


Inventory management policies
Policies based on ABC analysis leverage the sales imbalance outlined by the Pareto principle. This implies that each item should receive a weighed treatment corresponding to its class:

A-items should have tight inventory control, more secured storage areas and better sales forecasts. Reorders should should be frequent, with weekly or even daily reorder. Avoiding stock-outs on A-items is a priority. Reordering C-items is made less frequently. A typically inventory policy for C-items consist of having only 1 unit on hand, and of reordering only when an actual purchase is made. This approach leads to stock-out situation

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