| With extensive popularization and application of microcomputers, computers become indispensable important tools in people's life, and the need to grasp knowledge about computers is increased. Courses related with computer science now is necessary for students of different level schools, beginning from primary schools; Different computer short-term training courses, authentication classes, etc. are coming out everywhere in China; With more and more students entering into universities, how to organize students' computer knowledge and level examination becomes one of the most difficult problems that every school must face and solve.We propose a solution of paperless examination system through network based on C/S model, and develop a multi-layer distributed paperless examination system based on the model, according to functions and characteristics of network examination system and needs of microcomputer courses, and our teaching research and practice for many years. The system developed consists of theory test and operating test, it has realized paperless management of traditional examination process including: set examination questions, organize examination, go over examination papers, report marks, etc.The system contains 2 parts: management subsystem and examination subsystem. The management subsystem manages examination halls, test papers and marks. It includes 5 modules: examination hall assign module, test paper edit module, test paper arrangement module, mark management module and examination controlmodule.The examination subsystem makes test papers from different examination questions, distributes and reclaims the test papers, identifies examinees and their qualification to join an examination. It is made up of 5 modules: identity check module, qualification check module, examination management module, hand in an examination paper module, marking module.The examination system has realized electronization of making test paper process, intelligentizing of examination affairs, automaticity of making mark process, statistic within real time, intelligentizing of invigilating process on network, and etc. The system has combined and optimized the traditional examination modes, and has improved the validity and standardization of examination process under guaranteeing safety and secret of test papers. Therefore, application of network to arrange examination process is an inexorable trend in the future.The paper is divided into 7 chapters. The chapter 1 is about background of the system development; chapter 2 describes design plan and framework of the system, gives descriptions of hardware, software and system functions involved in the running environment of the system; in chapter 3 the protocol the system adopts and relevant technological background are discussed; chapter 4 provides data structure and workflow of the system; in chapter 5 the design philosophy of every software part is explained, detail of the development is also provided; chapter 6 describes the security solution and implementation method; and last, chapter 7 sketches popularization and results of the system application. |