ABSTRACT
System based on B/S model is a three-layer distributed application system by dividing the server into two parts: data server and the WEB server (see Fig. 2).
This model greatly simplifies the client’s design, they can log in the server as long as able to browse webpage, which greatly convenient for teachers, students and other users. For system expansionary, as long as this model can extend application of data server, and the remote user need to start the WEB server application. But for a large amount of data interaction system or higher requirements for the speed of the system, the model is not very suitable, such as curriculum arrangement system, performance management system. At the same time as a result of the limitation of the browser, it is difficult to develop a highly complex and powerful subsystem; In addition, because the model is based on a highly open network environment, the security is not high, vulnerable to malicious attacks. Therefore, for high security requirements of educational administration system, it must establish a complete security system as a guarantee.
