Research On The Several Issues Of E-procurement System Based On Supply Chain Management

In recent years, as a management and competition mode for enterprise to meet user individual and diverse needs in today's increasingly competitive market environment, supply chain management(SCM) is paid much attention by the worldwide academic and business circles. Procurement is an important part of SCM. E-procurement has shown a tendency to gradually replace the traditional procurement, which comes from the traditional procurement and be widely used along with the rapid development of information technology.At present, although there are so much research on e-procurement and e-procurement system(EPS), yet the research that EPS brought into SCM is rare and also limited in the upstream of supply chain, not from the perspective of the whole supply chain.In this paper, in the basis of a summary that applications and research of EPS is given above all, the research framework of EPS based on SCM is established. Then some key issues in the research framework are studied. The main innovations as follows:Firstly, the framework model of EPS based on SCM is presented. The framework includes four functions of the SCM: demand management, supply management, production management and logistics management, then demonstrate the framework's practicability and rationality through case study.Secondly, the identity authentication policy of EPS is presented. The policy can adjust the modes of EPS dynamically and realize the homeostasis among security, cost and efficiency for different security requirements and users in each stage of EPS.Thirdly, the model of supply chain information structure and organization structure based on EPS is established. The model expresses the relationship between supply chain information structure and organization structure, and be established based on the concept of Information Hierarchy(IH) presented in this paper.Fourthly, supplier management MAS system model based on EPS is established. Through the analysis of supplier trust problem on EPS , it presents the framework of supplier relationship management based on IH and online reputation calculation, then establish the supplier management MAS system model based on online reputation calculation.Fifthly, a dynamic optimal path selection method in E-procurement logistics management system is presented. In response to the timeliness features of E-procurement emergency logistics, a optimal path selection method and emergency logistics system based on disaster risk coefficient and GPS/GIS are presented. Finally, the simulation shows the effectiveness of the system.