(a) A-Item: Very tight control, the items being of high value. The control need be exercised at higher level of authority.




(b) B-Item: Moderate control, the items being of moderate value. The control need be exercised at middle level of authority.
(c) C-Item: The items being of low value, the control can be exercised at gross root level of authority, i.e., by respective user department managers. 

2. HML analysis
In this analysis, the classification of existing inventory is based on unit price of the items. They are classified as high price, medium price and low cost items.

3. VED analysis
In this analysis, the classification of existing inventory is based on criticality of the items. They are classified as vital, essential and desirable items. It is mainly used in spare parts inventory.

4. FSN analysis
In this analysis, the classification of existing inventory is based consumption of the items. They are classified as fast moving, slow moving and non-moving items.

5. SDE analysis
In this analysis, the classification of existing inventory is based on the items.

6. GOLF analysis
In this analysis, the classification of existing inventory is based sources of the items. They are classified as Government supply, ordinarily available, local availability and foreign source of supply items.

7. SOS analysis
In this analysis, the classification of existing inventory is based nature of supply of items. They are classified as seasonal and off-seasonal items.
For effective inventory control, combination of the techniques of ABC with VED or ABC with HML or VED with HML analysis is practically used.

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