Design And Implementation Of Online Examination System In Basic Computer Based On B/S Mode

With the rapid development and popularization of the computer and the internet information technology,there is a great extension of traditional teaching and testing model,which provides an excellent platform and technology support for the curriculum reform of vocational education.The traditional paper-based examination includes such kind of series as preparing for the testing exercises?printing the papers and checking the students' papers,which wastes huge human forces and materials.Also,the mistakes are unavoidable.In order to improve the students ' examination and the teachers' scoring efficiency,and based on the requirements and features of the computer examination in Hebei Jiaotong Vocational and Technical College,the author designed an online testing management system which is based on B/S.The thesis analyzes the background,significance and present research status of the system;introduces the relevant technology and algorithm used by the system;illustrates the total design target of the system based on the Need Analysis and designed the function model,architecture and database.Finally,introduces the specific implementation of the system in detail.The online testing management system includes multiple choices and operating subjects and realized the function as automatic examination organizing and evaluating.The algorithm of the test-paper is a difficulty in the system realization.This thesis designs and implements an improved k-means algorithm which is based on the analysis of the deficiencies and disadvantages of the forehand algorithm.The experimental results show that the new algorithm improved the efficiencies and success rate of test paper forming.As for the automatic scoring for operation subject,through the analysis of Office document formats,using the automatic scoring function score algorithm based on the fuzzy sets,the system can search and compare the standard answers with the students' operation results to realize the automatic evaluating.The system's development is based on B/S and JSP technology,using the MVC design model in Struts framework,using MySQL as the backward data-base system,and using j Query easyUI frame design in the foreward JSP page development in this online examination management system.The design and implementation of online examination system can promote the information technology development of vocational and technical colleges as well as the practical teaching.And it can provide useful experience andreference for the reform of computer basis examination model.