| On the Internet, the Web is the most widely used form. Web technology and the emergence and application of the popularity of the Internet has played an important role. Because of its graphics and audio technology, interactive and easy to manage limited internal features which led to the much-computer industry, and because of the visual Web application, convenience and it has far exceeded the impact on other forms of network applications, such as FTP, Gopher and so on. Web application generally consists of three parts : 1.Web Server users receive request Application procedures and the implementation of the extended database connectivity. Results will be returned to the database server and client; 2.the database server : Web Server database manipulation to accept the request, the database inquiries, revise, update and other functions. 3.the results submitted to the Web server, browser : user requests submitted to the Web Server. and the outcome of the request indicates to users. Web technology in the form of many Internet applications. Online Examination is one of them. Because of its fairness, safety, accuracy, flexibility and features of randomness, At present, the international community has become a widely used form of certification examinations. For example, the United States all over the world to study the text Peterburg Limited computerized examinations (including the Microsoft Computer experts permits a foreign language GRE, TOEFL, etc.) However, due to the special nature of online examination is the examination itself. Therefore, it is very stringent performance requirements of the entire system. must require high-performance servers and network delay must be small. Many researchers are working on this research to find a way to improve server performance and reduce network delay. Multithreading is the more they use, redundancy, asynchronous technology, but found a greater impact on system performance. Database Connection Pool is the best proxy cache technology and two-line operation. Internet-based online exam has been a powerful way to add modern examination and development. The main location is the traditional mode of examination room, as long as the room is equipped with tables and chairs inside, it can become the local examinations. With the development of electronic and information technologies, on-line test system came into being, it will break the traditional pattern of the examination, space constraints. With the maturing of the computer Internet technology. The line was originally at the theoretical stage of the examination can become practical application of technology. Also, we are pleased to see that there are many on-line examinations as well as the 101. If (GRE), the United States postgraduate entrance examination. (GMAT), Graduate Management Admission and Industry (CGFNS), the United States National Commission for qualified nurses and other networks network technology and the rapid development of information technology upgrading. Computer education in measurement and evaluation process has been widely used. Computer-aided evaluation in education, teaching and learning of the evaluation process and trigger an evaluation, to the profound changes in methods and formats. The development of educational applications can be combined appraisal theory, methods and means of modern information technology online evaluation system Individualized learning for the students to provide "flexible, convenient, science fair" and "individual learning evaluation services." Distance education has become a front in particular, there is an important task faced by educators. "Online examination system," first emerged it is appropriate to replace the manual completed by the computer to complete a series of tasks that need examination achieve intelligent examination. Can be automatically generated questions, and candidates were allowed to answer on computers. "Examination of paper", teachers need to spend time to prepare for each examination papers. "Online examination system", it can be used in establishing a database questions randomly generated automatically, reduce anthropogenic factors. And can automatically correcting, and automatic analysis of each paper. Since students can answer in the computer, then the computer will be quickly correcting papers. greatly enhance the efficiency of teachers analysis papers. "Online examination system" is also an important function : to achieve examination candidates are independent. From the examination of an application to the official end of the examination process is an autonomous, fundamentally shake off the shackles of the traditional mode of examination. Intelligent Control in addition to the examination, candidates are always open to the general, do spot-test function completely shake off the shackles of time, it is also open to achieve an important function. Network Test Platform is an important component of the education network. You can test platform for the network time to test their learning progress. have to learn to grasp the extent of their knowledge. The test uses the Internet very early on by all the attention. Since the test can be completed through the computer, then from the online test is technically feasible. GMAT examination in a well-known business management in 1999 began to implement computer examination After the 2000 GRE, TOEFL examinations have begun using computer examination toward the direction of the network. Examination of the obvious advantages compared with traditional examinations, and teacher candidates from any corner of the world. Access to the Internet through a browser using the examination system, without geographical restrictions. Users can also make more flexible arrangements for the examination, may at any time use of self-rated network test systems, rapid inquiries examination results. Training examination as a very important aspect of how the examination of the characteristics of modern enterprises. How better to train services has become the urgent need to resolve the issue. Web-based network test system with the unique advantage as a key means to solve the problem. This paper analyzes the current examination system to the use of Web-based technology established a model widely used at present three-tier structure as the system / development structure. The module structure of the system, the more important score-line examination process technology and design. And the development of the whole principle of overall planning, design and realization process. The article analyzed the theoretical examination, and the characteristics of the system to reach this stage of the mission objectives. Detailed analysis of the system as well as the database server system SQLServer2000 technical background, and on this basis, the relevance of strong data table design. Finally, it presents a Paper, scoring and display of the browser interface terminal examinations. |
PDF Full Text Request