Network Test System Based On J2ee Architecture Design And Realization

Exam System is a software system developed for the same of taking the advantage of the network and in order to remoting examinations based on network.We developed the system according to Rational Unified Process,the model is constructed by UML language in Rational Rose,a visual modeling IDE,System is constructed base on J2EE architecture and many J2EE technologied,such as JSP,Servlet,EJB,etc.We choose Bea Weblogic Server as the application server, Microsoft SQLServer 2000 as the database and Microsoft windows 2000 as the operation system.In this paper,we descript the structure of a net examination system,which based on the java2 technology. Since we use Java2 technology,the system has the following property: crossed-platform,security,object oriented. We closed our research in the following subject:1. Develop a net examination system,which based on java2 technology.2. How to recovery student's answer when the computer OS break down or the server collapses.3. How to use OOA/OOD technology to design the net examination system so the system will be extendible and reuable.4. Adjust test questions'difficulty in the test question database dynamically...