Research And Design On Web-Based Distance Education System

In late years, the distance education system based on Internet is developing quickly in the area of education with the development of the technologies of Internet and the coming of information times, which has become the important direction of the study in civil universities. This distance education system is based on the Internet and realizes an interactive method of education by which the users can study the newest contents of education at any time and at any place.Compared with tradition education, the distance education system based on Internet gets out of the limitations in site and time of the tradition education, which can make it possible that the teachers and students can intercourse face-to-face by up-to-date technologies of Internet. Furthermore, this system throws off the woes in the lack of classrooms, the limitations of the students' quantity and the limitations of education site, which can make full use of and privilege the education resources. On the other hand, people can't get the integrated knowledge by the tradition education in the developed information society. People need a mode of the education which can provides the continual study without resignation. But the tradition education can't meet this need, the distance education is bound to be the road during the development of the civil education.This paper not only studies the characteristics of the activities in the distance education, but also provides a distance-education system model, which is based on Web and users' personalities.This paper includes five parts. In the first part, the conception and models of the distance education are simply introduced. The differences between the distance education and the tradition education are discussed. The advantages and the problems of the distance-education system are analyzed.In the second part, the teachers and students' characteristics of the distance education, the methods of education-contents design, the choices of education mode as well as the diagnosis and evaluation model of the distance education arestudied according to the characteristics of the distance-education activities. The asynchronous and synchronous mode of the education based on the capabilities of the students is provided.In the third part, a functional model of the distance education system based on Web and users' personalities is designed according to the characteristics of the distance-education activities and the education mode provided in the second part of this paper. The goals of this model in design are discussed. The methods used to make the system work better are analyzed. The key technologies adopted in this system are introduced.In the forth part, the design principle adopted in the giving-lesson sub-systemin the functional model---Windows Media Service are discussed. Theapplication framework and system constitution of Windows Media Service are introduced. The system architecture and functions of this sub-system are provided and analyzed.In last part, the structure model of the learning sub-system in the functional model is discussed. The guidance of education in the learning module which is based on the students' personalities, the realization of the guidance, the problems in the realization and the solutions of these problems are analyzed. Moreover, the technology adopted by the tool(the video intercourse)which is used to help user study is introduced.