With the rapid development of the global economy, manufacturing industry is facingdouble competition pressure both at home and abroad. In the fierce competitiveenvironment, reducing the inventory cost is always one of the important goals in themanufacturing enterprises. On the one hand, hoding too much inventory will cause stocksluggish and increase inventory holding cost; on the other hand, holding too little inventoryresults in delivery delay and decrease the level of customer service. Therefore, efficientinventory control methods have been paid more and more attention by enterprises. Thecombined use of information technology and the inventory control method is an importantway for enterprises to achieve the goal of inventory control.In the electronic manufacture, the alternative materials include the alternative rawmaterials and the alternative semi-finish goods, this paper will focus on the alternaive rawmaterials’ inventory control. For the P’s company as an electronic manufacture, thealternative materials are complicated and universal; and there are some problems of thematerials’ requirement calculation in MRP module of the SAP system, that is the MRPresults of the substitute material groups will lead to inflated demand and sluggish inventory.Base on the analysis of this situation, this paper will try to find some solutions to theproblems, then propose some feasible solutions for the inventory control, the majorcontributions are as follows:(1) Improvement of the MRP system process. With the interaction of the MRP systemand the BPR, then analyze the MRP process and find some problems of them, after that putforward the improvement methods and excution steps for them. First, simplify the oldMRP system process; then integrate with the new MRP system and the external systemsand the SAP system; finally optimizate the MRP calculation process. Base on the BPR, theimprovement of the MRP process can be as a solution to achieve the goal of inventorycontrol for the alteractive materials.(2) Optimization of the inventory control method. Analyze the key elements of theMRP method, and then optimize the two key elements of them including the classifacitonof materials and the setting of alternative materials with purchase priority and purchaseproportion. Firstly, according to the combined use of ABC classification and the criticalvalue analysis method, the matierals can be classified managed; Then base on the enropy weight TOPSIS method，the same group of alternative materials, the priority of them canbe indentified, and the reasonal procurement ratio of them can be set with purchasing rule.After the optimization, it can reduce the hoding cost of material inventory for theenterprise, and it can be as another solution to achieve the goal of inventory cost control.(3) Development and realization of the MRP system. According to the aboveimprovement, then develop the MRP system for the inventory control of the alternativematerial for the enterprise, finally it is proved to be effective and feasible atfter P’spractice.
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