| EC of now has low efficiency to B2B, because there is no effective cooperation and information share between the enterprises. Getting the information needed from the other enterprises and issuing the newest information of own is a very important problem. The solution of the problems mentioned previously is the key to improve the development of the electronic commerce system and to realize the information exchange and cooperation high efficiently on Internet.The theory of Agent, multi-Agent system (MAS) and mobile Agent is introduced. The idea of Agent oriented (AO) software engineering is expatiated and taken as the polestar of the system modeling mentioned in the paper. The structure and the function of mobile Agent platform (mobile Agent Server) are analyzed. On the basis of the explanation of mobile Agent system based on platform and Application-Centric Mobile Agent Systems (ACMAS), the characters of the two systems are analyzed and compared and that ACMAS is more convenient and effective to construct the application system based on mobile Agent technique is ascertained and ACMAS is taken as the guideline of the system modeling mentioned in the paper. Cooperative Information System (CIS) is realized in the manner of middleware and the theory and technique of mobile Agent is imported in the middleware, a system model of Cooperative Information System Oriented Middleware (CISOM) is given. With absorbing the design ideas of IBM Aglet mobile Agent System adequately, in the design of mobile Agent System of CISOM, distributed transparence service module is redesigned, message service function is extended, the organizing mode of large system is supported and the interactions among the other systems is supported. The basic Agent elements are defined and the functions of the Agents, which are showed in workflow chart, are designed. Additionally, the development pattern of CIS based on the CISOM is given with the idea of Agent Oriented software engineering. According to the development pattern, a cooperative B2B EC system model (B-CISOM) to the material application is given. After studying servlet and JDBC techniques of Java and Aglet, the B2B EC system model is realized. In the system realized, the buy information is obtained with the work of the buy information subsystem and the remote query subsystem. The two subsystems work using mobile Agent.Application of mobile Agent technique in EC makes use of the advantage of the characteristic of mobile Agent to solve the problems in EC, which has definite practical value and universal sense. |