Distance Education System Structural Analysis

Conceptually, integrates kinds of distance education forms and their connotation, such as the separation between instructors and students spatio-temporal, conducting education and instruction activities utilizing modern education technologies as tools and media resources as contents, interchange and integration all kinds of education resources of schools, colleges and other social organizations. With the development of distance education especially, the development of modern Internet-based distance education, the theoretical researches and practical topic discussions of distance education have gradually been the focuses in the field of education. The author of this paper analyzes the organization mode, technology structure and communication model of the distance education system from points of view of distance technology, education psychology and educational management science. The factors of the distance education system are also emphasized in this paper.The technology system structure of distance education system can be divided into three levels and six technology fields. The first level is physical level which includes channel technology and media technology, the second level is constructive level which includes platform technology and instruction design technology, the third level is operation level which includes management and evaluation technology.The organization structure of distance education system can be divided into four typical modes: tree mode, radial mode, netlike mode and mixed mode.Based on Lasswell's linear mode, Claude E.Shanon-Weaver's mathematical mode, Schlamme's circular mode and Romiszoski's bidirectional mode, the general communication model of distance education system composed by instructor, learner, information channel, control mechanism and surroundings is employed. The author analysis the process of distance education and the reason of information distortion in the communication loop of distance education with the model as a tool.The analysis methods of current distance education system are summarized. They are function-typed system analysis method, process-typed system analysis method and subject-typed system analysis method. Ultimately, it is analyzed that the main ingredients of distance education in detail which including student factor, the teacher factor, the media factor and the evaluation factor with putting forward the system factors analysis method as a useful tool.