Study And Design On A Examination System Of The Computer Fundamental Knowledge Test

In recent years, the Chinese education commission enlarge enroll the students of colleges on and on, the result is the population of universities increased with a high speed. In each student's phase of grade one, despite which specialty he chooses, basic computer technology is a lesson he must learn. And then, about this lesson's examination, there's a great deal of work to do. Include make up the test, judge the test, and manage the test. They have made a big incubus to the teachers. So we need an online exam systems to solve this problem. After wide survey of online exam systems, this system is put forward based on analyzing architectures of online exam systems now exists. This examination system is based on three layers construction, which consist of present layer/middle layer/data layer. User interface is in the present layer. Core deal logic is in the middle layer. Data is stored in the data layer. This system is able to test basic computer. The system is divided into three modules: examination questions library administrating, examinee logging in, and system administrating. In the first module, teachers can login by using the right user name and password. After the logon, they can input, modify and delete the examination questions. The test paper can be created manually or automatically. Besides, existed test papers can be imported into or exported from the system. In the second module, examinees can get an unique candidate ID by login, then get into the system after passing the candidate ID validation. An important function of this module is paper automatic reading. In the third module, the administrator can query the database, delete, and modify the information of both teachers and students. The most difficult thing is to judge the response file to point it by the examination system automatically. The solution is VBA, which can get OFFICE files'setup information. We get OFFICE files'setup information from response file and then standard answer contrast again get a goal of answer book. This examination system flexibility, easily use, good maintenance and good expansibility. We use balanced load and cache usual data to impress the system, so it can accept many students use the system at the same time and complete all handles quickly and respond to postpone short. It's present layer in the web browser, so users use the system very easy. It is no need to install any files on the client, so installing and maintenance of the system are easy. Its logic deal process is sealed in COM, so extending and adding functions to the system very easy. Any users who want to use the system must pass security check, so the system is high safety.