The Desing And Implement Of The Electronic Commerce Technology Online Examination And Marking System

With the rapid development of computer information and network technology, theprocess of informatization construction has made great progress at all levels in thedomestic educational institutions. The results of their research is gradually affected theteaching method and examination mode. Especially the various colleges are in urgentneed of the informationization of educational management, and the technology ofelectronic business is a new curriculum, the examination contents and procedures aredifferent from the traditional examination mode, and the examination contents tend tobe more subjective questions, so the network examination system development must bebased on subjective question marking function. The development platform based onthe.Net network system is the key platform and the first choice for the realization of theon-line test system. Researching this aspect has theoretical and practical significances.At present many on-line test systems are aimed at the traditional teaching subjects,including automatic test paper, online test and calculation results, but in general, it is farfrom maturity in multidisciplinary, subjective question marking, graphical analysis anddemonstration and system maintenance. These defects can not adapt the examination of" Electronic Commerce " Subjects. In this thesis theoretical analysis are established forthe network examination system. And the general scheme is raised for the constructionof the question bank. The establishment strategy of the intelligent examination system isalso analyzed. Its specific steps and programming schemes are stated, and so is therealization of subjective marking results because the traditional test marking system isstrongly objective-question-oriented.Firstly, use Unified Modeling Language to meetthe demands of system case function; Secondly, complete the system database conceptstructure model design based on the examination of business processes in a data entity;Thirdly, use SQL Server2005uses data oriented design method to create the relatingdatabase, and list the logic structure of the main data sheets; Finally, realize the systemfunction of main module using ASP.NET, C#, XML network programming languagegives the main data table logic structure in Visual Studio.NET2005developmentenvironment，It describe a online test paper method based on heuristic search algorithm that used in the online examination system.The system can realize the multi-user onlineexam at the same time, automatic test, time control, automatic marking, test questioninput and modification, user management, course management, performancemanagement and other functions.This system has broken the time and space restrictions of traditional ElectronicCommerce, having realized students functions such as online learning, asking questions,upload and download the data. The interface of the system is friendly, the operation ofwhich is simple, offering a lot of convenience to teachers and students, implementingthe information management of teaching resource, and the teaching resource will beshared between each other. The project of constructing the online testing system, asproposed in the paper, can be widely applied to the online education.