Design And Implementation Of On-line Examination System Based On WEB

Along with the arrival of network ages, the Internet technique has already overlaid every city. The network examination is an importance part of the network education .normative, scientific, systemic examining has already inevitable became the trend of the education development. With the mass use of the information technology, all kinds of computer examinations arise. And people exam usually by operate the computer, so, the environment of the examination, namely have an examination the design and realizing of the on-line examination system, is very important. Today, when the network technology permeates each aspect of social life gradually, so choose the network to have an examination is a very important direction. At present, to realize the network examination system, can adopt the traditional mode of client / server or the present popular mode of browser / server which based on Web. In view of existing defect of traditional examination, the paper introduced an on - line examination system based on browser/ server mode under Web environment. It adopt a design method based on java, and the technologies of JSP,JavaBeans,XML are also used.This paper expounds assignment and meaning of the system, also introduces the frame,flow,tool of program and circumstance of running. These tables in database and tactic of safety are introduced detailedly. This system adopt B/S three layer system structure as the total structure of the systems, it is constituted by the browser, the Web server and the database server. They are managed and send out by the Web Server. The customer sends out requests to server by Web browser and HTTP agreement, receiveand display Web information that is offered by server. In this system, the customer makes use of a browser to register the Web server through an Internet/Intranet, use the JSP document, carry out that JSP page, the result that is carried out to return correspond page, (such as a certain interface of on-line examination system) and answer. The customer carry out the operation claim by HTML page of browser, the JSP then builds up a conjunction to access the database server through the JDBC and database, querying test questions database, the result of dynamic HTML page(such as the examination paper) return to the browser. This system conduct and actions and customer carry to connect with each other of interface, analyze the claim that the customer carry and need to combine to pass it the Web server processing, then connects with each other with the database server to combine to exchange an information with it, send back the key that the customer carries a browser this system a design to it again.The entire system consists of there main sections: system management module and database management module and the online examination module. And completely achieved test questions imports, group paper, releases the examination paper and gives an examination the statistical analysis full process that queen carries on achievement and examination paper test questions. Design the system user interface concise audio-visual , and achieved systematic behind-the-scenes backers of examination on net data bank supplying the secure guaranty of indispensability in the interest of the system oneself. Managing person the system maintenance part, carry out managing person's increment of system to delete the system information and support the function of the system, that part mainly is completion to try and to student of the management of[with] examination information. The usage tries a management molds piece part, can increase or decrease or edit to try according to the demand of the teaching, the intelligence set book, organize a student to examine on the net, being as a result carry on statistic sing analysis to the examination. The on-line examination mold piece mainly is responsible for the examinee the born examination category row form, born try book and carries out on-line examination, grade examination papers automatically. The examinee needs to choose the examination category first after register. Then according to examinee the category of the choice, take out a set book from the database, and is return with random sequence to the examinee. The on-line examination systems contain a huge student's database, recording the student's whole information and examining the result. All tests sample random in the database. Function when system had an au to record, in the examinee the examination of the process, the examinee can see examine time use at any time. While examining be over, the system is strong line the examinee hand over to try book, examining be over, canning immediately see the examination result at that time. The student take examinations, machine automatically random set book is born to try, satisfying a set of book to make out questions process well efficiently sex, vivid, science.The database conjunction Mr. carries out system with the mold piece to hand over effectively with each other sex. System almost all pages involve to the database, the structure and contents of the database is with system want to carry out of the function is close to connect with each other. The database is the core of the on-line examination system; want to apply the procedure establishment conjunction with stage to then can produce result after build up.It can allow any enrolled examinee to test at any time and get the score immediately. It can also give the detailed analysis of the score and the evaluation of the test paper. It has truly realized on - line examination with paperless, it lightened the teachers' burden of working out test questions, grouping the test papers and reading the papers greatly. The justice and reasonableness of examination are assuring. Concrete process is: The student passes to register the interface logging, if succeed to then carry on an automatic set book, show that try book , the student starts the answer, trying book at the completion inside time for rule and hand over, the system passes the automatic book examination result to. Under three main mold pieces, the system can be divided in to register the mold piece, automatic set book mold piece, hand in an examination paper a mold piece automatically and grade examination papers the mold piece, examinee information management mold piece and try a management mold piece, the result search mold piece, managing person to increase the mold piece statures mold pieces with many etc. automatically. This text all carried on introduction to above each usage of the mold piece and developments.