The System Design And Practice Of Self-Test System Based On J2EE Open-Source Framework

Along with the fast growing of computer technology and network communication technology, verity of information platforms based on Internet have been more and more used in all fields of society. Especially in recent years, self-test system based on B/S mode has become a major concern research in the field of education. From the characteristics of self-test, with the Multimedia Teaching and Remote Network Support System Based on Domestic Foundation Software which is one of the research issues of China's National Tenth Five-Year Key Science and Technology Project: Distance Education for Primary and Secondary Schools and Key Technology Demonstration, this thesis elaborates on the J2EE open-source framework development of a series of self-test system software process including requirements analysis,system design,coding and optimization of system data persistence layer.First, the thesis discusses the theoretical foundation of self-test system, including both the guiding role of Classical Test Theory in the system function development of Q&A and strategy and the possible improvement according to Item Response Theory. Then, the paper also expounds on the development of self-test system software process involving system design,implement and deployment. In the end, the paper discusses the purpose and necessity of the optimization and details the optimization of system data persistence layer. With the analysis of some usual J2EE persistence techniques, the paper puts forward specific measures to optimize the data persistence layer.Self-test system described by the thesis provides not only the function of standard self-test,exercise and mock examination but also interface integrated with a higher level platform. Users can integrate the self-test system into other teaching or information platform. We establish a data bank with a variety of item types and provide the openness of the item types' expansion. System users can add new item types to the item bank as needed, enabling the dynamic management of item bank.