Research And Design Of XML-based Examination Base System

With the development of network teaching and long-distance teaching, the examination has become an important mean of testing the quality of teaching and the ability of student. The examination base has played an important role in education as a kind of educational resource. Currently, higher education need to meet the demand of generating test paper effectively, conveniently and objectively, build up the structure of examination base with highly efficient examination base for inquiring, generate the test paper automatically, accumulate and form the effective the database of examination and make the management of test paper more effective and scientific.The paper describes the research of the design of examination system based on the technique of Java and XML.First, it introduces the research background, purpose and significance of this system research and describes the general scheme of the system including analysis of the system function and the design of database.Secondly, it introduces the running environment of the system and the Java , used in this system, including the techniques of JSP,Servlet,JDBC,JavaBean and so on. Besides, it introduces the characteristic of these techniques and the means of storing and drawing the data based on XML technique.In addition, this examination base system adopts three-layer architecture. This paper describes in detail the realization of the three-layer archtecture including design client layer, logic layer and data layer. The client layer is designed with JSP and JavaScript, logic layer with JSP and Servlet technology, data layer with JDBC and JavaBean. The system function is accomplished in the logic layer.Furthermore, it also describes the design ideas of the key parts, which are the algorithm of generating test paper automatically and the exchange of heterogeneous data. Test paper generated automatically is verified in terms of repetition of knowledge point and validity of the condition of generating test paper, and the exchange of heterogeneous data is accomplished through XML.In the end, it discusses in the appendix the errors and exceptions which emerge in the process of development and the ways to deal with them.