Design, Web-based Distance Learning System

With the high-speed development of network techniques, the distributed modern distance education with the medium of network is going out of frame of the traditional education, which is changing the form of "teaching" and "study" . The distance education based on Web has been a new teaching method. This thesis focuses on the design and implementation of a distance education system based on Web.The thesis covers several research aspects in distance education, such as constructionism and adaptive test theory, etc. From the perspective of Web-based software development, this thesis mainly discusses the ensemble architecture design of the distance education system. Besides, it also introduces the key technology used on this Web education platform, such as the database, the structure model of B/S, Web service, ASP.net, etc.The thesis discusses the design and implementation of the system structure as well as of the functional models and database bank of the system in detail. The system consists of sorts of modules, such as on-line learning, on-line adaptive test, on-line question and answer, on-line management of courseware, etc. The system builds an interactive distance education platform. Students interactively study under the digitization environment. And instructors teach with useful feedback from the system. Therefore, it offers a relatively completely solution for on-line distance education based on Internet.This thesis emphasizes the technology of optimizing the structure model of B/S, which separates the HTML programming from the commerce logic, as well as the technology of Web service, with which the distance education system Web-based is built. Besides, the thesis also introduces the implementation of the adaptive test. These can use for reference in other projects.