Simulation Of Purchase And Distribution Management System Based On Supply Chain

With the incremental development of world economic integration and market globalization, and the quick development of information technology, supply chain management (SCM) has been the important management mode for modern enterprises and also been a hot research field for academic study and practical application since 1990. Under supply chain management mode, individual firms no longer compete as independent entities, but rather as integral parts of supply chain linkage. A good supply chain with competition force not only could provide best service and make products into markets with most reasonable cost, but also have the capability to coordinate other members in supply chain.In supply chain management, supply management and distribution management is the most important linkage, which is not only the sign to measure the level of supply chain management and is the most key factors to determine the competition capability of supply chain. Evaluation and selection of suppliers is the core of purchase management.Demand forecasting of market is the key to distribution management. Thus, the Evaluation and selection of suppliers and demand forecasting of market problem study for supply chain management will undoubtedly be very important for theoretical study and practical application.Based on the review of the overseas and domestic study on supply chain management, problems and supply chain performance evaluating problems, this dissertation mainly has focused on the issue of modeling and simulating for the system. Most work and creations of this dissertation are presented in the following.1. The supply chain's definition, the structure model, supply chain management and basic principle are explained. Logistics, information flow and capital flow of supply chain are analysed, and the content, the activity and the goal of supply chain management are recited.2. It's the key to the construction of SCM how to build the evaluation guideline system for determining suppliers in the components and parts purchase. The theory of the evaluation and selection of suppliers is pointed out and a more comprehensive index system of supplier evaluation is esteblished.The modeling and simulating of supplier evaluation and selection is built by AHP and TOPSIS.Finally,a simple numerical example is given to simulate and forecast with two models.3. The issue of the modeling for the distribution managament based on demand forecasting. ANN model is applied to the field of demand forecasting. The model based on demand forecasting is established by Simulik module of MATLAB. Based on them, a simple numerical example is given to test and forecast with three-layer BP network model. The computational results show that using BP network model to forecast demand can reduce total cost and increase service level in toal system.