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5.5 Supply chain systems and information integration

In the highly interconnected network economy, a supply chain system is made up of many independent subsystems. These subsystems may reside within the different functional areas of a firm or with a business partner outside the direct sphere of influence of the firm. The management focus is on integration of all processes which affect the service and cost structure of the firm, and information is the key to that integration. The basic problem remains in finding a common goal which would make this integration readily acceptable, because different subsystems have different operational economics.

What is required is a holistic view of the supply chain and a mechanism by which the integration process can become a win-win situation for all participants. It is important to make this work as optimising the supply chain may cause apparent sub-optimisation of one or more individual elements of the chain. For example, cheaper freight rate for truck load quantities might encourage a retailer to order in truck load quantities even when the inventory level built up as a result would be too high for the retailer under normal circumstances. When retailers are making their own calculations, they will follow this policy if the savings in transportation costs are more than the extra holding costs attached to the extra inventory.

But this kind of ordering decision will tend to hide real demand information and will create uncertainty in the supply chain, pushing upstream members to keep additional inventory. This will increase the level of inventory at every level and the total system-wide cost could be much greater than the benefit gained by the retailer through cheaper transport rates.

The rational approach would be to work out a system by which the retailer was encouraged to order only as required and other channel members shared the benefits of this reduced variability with the retailer by giving him back some of the savings gained, which would more than compensate for the potential gains from full truck load transportation contracts.

The level of integration required goes well beyond the simple transportation and inventory trade off example and encompasses complex issues like inventory management, manufacturing management and distribution planning. The optimisation requires real time information regarding inventory status, demand and order status, vehicle load status, quantity discounts, capacities at various levels of the supply chain and exceptions at any stage. The supply chain integration challenge is awesome and requires integration of information systems and the availability and management of information.

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