Development And Study Of Network Examination System Based On EJB Technology

With the development of computer technology and Internet popularization, the function of CAI has evolved from single machine version to network version, Distant Education forces Education Teaching Model and examination mode to a fundamental leap thereupon, Especially today when education teaching model of Modern distance education is becoming perfect gradually. It is very important to reform the examination pattern. Therefore research and development of the on-line network examination system become the heating points of education teaching model of modern distant education. So that this paper studies a design and project of the dynamic on-line test system based on J2EE and EJB technology which realizes application server business system and Struts technology that realizes system developing model.According to the design objectives of system and role-purview, this paper designs the functional module of system particularly which can be divided into three subsystems which contains the administrator subsystem,the teacher subsystem and the student subsystem. Flow charts of this three subsystem are designed. On the design of the system's database model, according to demand analysis and standardization theory for system database design. We take classic E-R method to design logic structure of the database, then takes MYSQL database to design instantiation to establish the database table, then this paper discusses the key such as using cursor in database to realize automatic generating examination method to guarantee fairness and practicability and taking JavaScript language to realize control examination time. In the end, We conclude design constitute and characteristics of this system.and introduce some work in the feature about this system.