Design And Realization Of Online Examination System Based On WEB

With the global improvement and commercial development , professional knowledge and abilities are highly demanded to laborers and workers, so examinations become the indispensable measure to choose the qualified employee. It is connected to everyone in his learning, working and living that we must confront with the various educational-level examination and qualification certificate. As the incessant development in computer network technology and the related technology, the instrument and medium of examination, in which the traditional examination just meet with challenges, take the great changes. The computer network technology is massively applied in the field of education, from paper examination to computer aided examination, and to online examination Based on Web. The online examination not only saves the enormous laborer and resources but also enhances the efficiency and quality of examination. Without the limitation of time and space, the Web-based online examination can exert its advantage to constitute the large, efficient and shared the Test Question Database(TQD) with the low cost, the result of test being more precise and objective.The paper mainly discusses the research significance, major contents and application prospects of the test system, this paper states the theories and relevant technology used in system amply. It includes: modeling tools, exploitation tools, system architecture, database designing, arithmetic of auto generating test paper, evaluation of test. The article also emphasizes on feasibilities analysis, system analysis, database designing, realization of system, system running and system debugging. The system is composed by following function modules: user management, TQD management, creating test paper automatically, online exam, automatic verdict papers, all-around query, evaluation of test, etc. The system mainly has five features as the following: First is the digital TQD. To put questions in computer and manage them with the database technique provides convenience to the storing, sorting, searching and working out of test papers. Second is creating test paper randomly and automatically. The system can select test papers at random according to the testing tactics, which greatly improves the efficiency of organizing test questions. Each student has a different test paper. It can prevent cheating, to insure the justice of the examination. The third is renewal of TQD in due course. The teachers can increase, delete, modify and renew the TQD according to the assessment and analysis of the result of test or its object. The fourth is the effective storage of test data. The test paper and scores of examinee are kept in the database, so the teacher can check the test paper and increase the nicety of checking and standardize the examination process. The fifth is the control of the security. The identity is validated when someone try to edit, modify, research the test paper and the score of the test. The sixth is convenience and celerity. Computer exam system provides a convenient exam environment. It not only reduces the cost of the exam, but also reduces the teacher's workload.The online examination system which offers an agile, convenient and scientific measure for learning courses and the individualized study is approached to the expected target by applying in the public computer course examination.