The Design And Realization Of Online Testing System Based On Web

With the rapid development of computer and network technology, teaching information of the education information construction has become the important research topic of the modern education technology. Therefore, the development of long-distance on-line test based on network technology can strengthen the standard of examinations, improve the quality of examination administration and enhance the school administration efficiency, save manpower and resources. Simultaneously it is also beneficial to schools teaching information modernization levels.This paper has demonstrated the design and implementation of the On-line test system. The system which based on B/S architecture is developed on Windows 2000 Server operating platform and uses Microsoft SQL Server 2000 database. According the actual requirement of school examination, four function modules are mentioned: login module, information management module, test module and the message board module. The use case diagrams are used to analysis the functions of various actors and the relationship between the function modules; The class diagrams are applied to describe the overall design of the system; The activity diagrams are used to describe the workflow of the main module; The sequence diagrams are applied to describe the interactive sequence of users login module, adding subjects module, students examinations module and the message board module. At last, the main algorithm of the system modules and some user interfaces are implemented. In addition, some solutions are brought up aiming for kinds of security problems,especially for database security and access control authority.