Database Access Agent In Erp Development And Application

We have proposed a solution which makes use of the database access agent to resolve the problems of information security and database flux control that will be encountered in the design and development of ERP system. Therefore, this thesis studies on the architecture, key technologies and methods for the implementation of the database access agent. Furthermore, the emphasis of this thesis is focused on the database flux control, database encryption techniques, and encrypted network transmission. The agent has been implemented using Visual C++ 6.0 on Windows NT or Windows 98.In this thesis, the architecture of the database access agent is firstly introduced, then the component based database access agent design is discussed, and the design and implementation of the network communication platform, the server and the client of the agent are studied in detail. At the end of the thesis, an example is presented to explain how to use the agent.In the chapter of Component Based Database Access Agent, the component criterion for the agent is selected and the component frame of the agent is designed based on the discussion for the component development technology. In the chapter of The Platform of Network Communication, its operational principle is discussed at first, then the program structure of the platform and the key technology of encrypted network transmission is focused. In the chapter of The Design and Implementation of the Server of the Agent, the operational principle is researched, the program structure is designed, and the key technologies of database flux control, data buffer, and database security are studied. In the chapter of The Design and Implementation of the Client of the Agent, the operational principle of the client of the agent is first researched, and the program structure of the platform and the component interface are studied.