Inventory database
An important component of inventory planning involves access to an inventory database. It is a structured framework that contains the information needed to effectively manage all items of inventory, from raw materials to finished goods. This information includes the classification and amount of inventories, demand for the items, cost to the firm for each item, ordering costs, carrying costs and other data.
The task of inventory planning can be highly complex. At the same time it rests on fundamental principles. In doing so we must understand and determine the optimal lot size that has to be ordered. The EOQ (economic order quantity) refers to the optimal order size that will result in the lowest total of order and carrying costs and ordering costs. By calculating the economic order quantity the firm attempts to determine the order size that will minimize the total inventory costs.
An examination of the two curves reveals that the carrying cost curve is linear i.e. more the inventory held in any period, greater will be the cost of holding it. Ordering cost curve on the other hand is different. The ordering costs decrease with an increase in order sizes. The point where the holding cost curve i.e. the carrying cost curve and the ordering cost curve meet, represent the least total cost which is incidentally the economic order quantity or optimum quantity.
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