Wednesday, March 28, 2007

Inventory Management Control: Controlling Your Inventory

To maintain an in-stock position of wanted items and to dispose of unwanted items, it is necessary to establish adequate controls over inventory on order and inventory in stock. There are several proven methods for inventory control. They are listed below, from simplest to most complex.

  • Visual control enables the manager to examine the inventory visually to determine if additional inventory is required. In very small businesses where this method is used, records may not be needed at all or only for slow moving or expensive items.
  • Tickler control enables the manager to physically count a small portion of the inventory each day so that each segment of the inventory is counted every so many days on a regular basis.
  • Click sheet control enables the manager to record the item as it is used on a sheet of paper. Such information is then used for reorder purposes.
  • Stub control (used by retailers) enables the manager to retain a portion of the price ticket when the item is sold. The manager can then use the stub to record the item that was sold.

As a business grows, it may find a need for a more sophisticated and technical form of inventory control. Today, the use of computer systems to control inventory is far more feasible for small business than ever before, both through the widespread existence of computer service organizations and the decreasing cost of small-sized computers. Often the justification for such a computer-based system is enhanced by the fact that company accounting and billing procedures can also be handled on the computer.

Point-of-sale terminals relay information on each item used or sold. The manager receives information printouts at regular intervals for review and action.
Off-line point-of-sale terminals relay information directly to the supplier's computer who uses the information to ship additional items automatically to the buyer/inventory manager.

The final method for inventory control is done by an outside agency. A manufacturer's representative visits the large retailer on a scheduled basis, takes the stock count and writes the reorder. Unwanted merchandise is removed from stock and returned to the manufacturer through a predetermined, authorized procedure.

A principal goal for many of the methods described above is to determine the minimum possible annual cost of ordering and stocking each item. Two major control values are used:
  • the order quantity, that is, the size and Page 4 frequency of orders; and
  • the reorder point, that is, the minimum stock level at which additional quantities are ordered.

The Economic Order Quantity (EOQ) formula is one widely used method of computing the minimum annual cost for ordering and stocking each item. The EOQ computation takes into account the cost of placing an order, the annual sales rate, the unit cost, and the cost of carrying inventory. Many books on management practices describe the EOQ model in detail.


More Online Information on Inventory Management

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