关键词: 需求链管理系统, 信息共享, 授权, 认证

Abstract: To improve the flexibility, reliability and responsibility of enterprise, a dynamic model of supply chain was constructed. A discrete state-space model for capacity-constrained was built up according to a three-stage supply chain, which consisted of one manufacturer, one retailer and one distributor. Moreover, the model could be extended to the general supply chain. Taking the customer satisfaction and average cycle cost as indexes, the performances of supply chain system under order-up-to policy were analyzed by means of simulation. The system had bad customer satisfaction and high operation cost. Then, a more flexible order-up-to policy was put forward based on feedback control theory, whose control parameters could be changed according different performance requirements and demand modes. Simulations were performed to test the new policy, and the performance of the system was analyzed. The results show that the new policy has better control effect than the former one in both dynamics and steady state.

Key words: supply chain, dynamic model, inventory, order-up-to policy