Design And Implement Of Distance Teaching System Based On .NET Component Technology

In recent years, with the rapid development of information technology, modern distance education system, which is based on satellite communications, wired television network, telegraphic communication and Internet, comes into being. UNESCO (United Nation Educational Scientific and Culture Organization) point out: "the rapid development of new information and transmittable technology will transform progress and approach of knowledge." For the coming of this new age, we need urgently to research the new changes of education that are brought by modem information technology, keep our power dry, and get into the swing of following work: courses design, network teaching, teaching organization, teaching resources organization and modern distance education technology standard, and build learning system for life including teaching in classroom and social education out school, produce open education network in society.The paper talks about the history and present situation of distance education, analyze the condition inside and outside, forecast the development tendency of distance education system in the future. Under these discussions, considering the system organization structure, data organization form, design and apply of web database and web application technology, we discuss the develop mode and technical method of distance education system, design and implement distance Chinese education system based on some learning resources standards. Concretely, our main works are:I. Research and discuss the development of distance education fields, emphasis on standards of distance education technology. Give a deeply analysis of IMS Content Packaging Specification and DLTS-9 Specification, and follow these specifications in the system.II. Analyze and discuss the organization problem, viz. physical storage problem. Bring forward an organization mode based on contents, and apply it into our system.III. Analyze and discuss the development mode of current web application, we implement the system by using object oriented and component oriented programming ideas and take lots of attempt and explore in the fields of web development mode.IV. Use two forms to manage data: related database and XML document. Choose XML document to exchange and transfer data in order to share system resources and transfer data between different systems.V. Analyze and discuss the implement method about examination on Internet, make difference between traditional exam and self-adapted exam form; Introduce XML technique to the procedure of random selection, and bring forward a random selection method based on XML.VI. Research and discuss component technology, focus on .NET component technology, and apply the technology to the design of this system.The paper divides into five parts. In each one, there is a concerned theme. In addition, these five parts are related each other. The themes are following:The first part: A general outline on the development of distance education researchIn this part, discuss mainly from three aspects: (i). An outline on the development of distance education inside and outside of our country. According to the supporting technology, with the development of network technology and multimedia digital technology, distance education will change thoroughly, (ii). The theoretic base for distance education, distance education is not only the result of the education in teaching methods, but also the result of interaction of computer science and educational science, (iii). The research fields of distance education.The second part: The standardization research of distance education technologyIt includes the following: (i). The significance of the standardization research, (ii). At present, the research status of the technology standards inside and outside of country, (iii). Some important standards and specifications established by international organizations, focus on specifications that are concerned with study resources.The third part: system design of the distance...