Design And Implementation Of Online Question Answering System For Wuzhou University

With the development of science and technology,the relationship among people is established closely and a more convenient life is brought by communication on line.In the field of education,knowledge can be acquired easily and study can be improved effectively by learning online at home.In recent years,the teaching work of Wuzhou University havs been greatly developed.However,the increasing number of enrolled students and using of online education has brought a great challenge to the university.With the increasing number of students,they are facing different teachers and learning places,which limits the communication between students and teachers in time and space.In order to make a smooth communication between them,an online questions answering system is designed,which will improve the teaching greatly.Based on the B/S architecture,SERVLET,JSP,JAVASCRIPT as programming languages and three echelon structure based upon MYSQL database and Java Web,the online questions answering system can run the following there basis functions:student module,teacher module and administrator module.The student module takes the students as the main body,the basic content covers the students questions,getting data(such as download),information and modification,and ranking according students' performance in the system.The basic content of the teacher module covers three aspects:the answering and getting points,uploading information,and ranking according teachers' points.Administrator module highlights the basic management functions,and the specific permissions on the problem of strict requirements.The main function is to operate based on the problems,college,profession and user management.The so-called architecture of the three layers of the whole system is divided,followed by the interface layer,business logic layer and data access layer,which is to achieve high cohesion,low coupling,and the basic design ideaThis system is to help students and teachers to interact with each other on learning,improve study on line and finally teaching quality.