Based On The Net Courseware On Demand System Design And Realization

The Courseware on Demand, COD is based on NET, its main aim is to consolidate teaching courseware source and provide COD study circumstances for both teachers and students. It can also promote the positivists for the students, for the teachers then improving theirs' teaching level and ability of making multi-media courseware.According to the item of campus network COD system of Metallurgy College of Human University of Technology, this paper studies the design and realizing technology of COD system, which is based on NET, including the following aspects:1. Analyses the background, principles and structures of COD system and designs a model of COD conforming to teaching regularity based on its shortcomings. This method is improved on the traditional COD , which also can play the current fashionable courseware formats and heighten the speed of COD.2. Analyses the current fashionable technology and system of NET, adopting 3-tier structure mixing both B/S and MVC models, this paper makes the analysis, design and realization for the COD system. The proscenium display and backstage administration are completely separated, which are benefit to management, maintain and upgrade.3. Realizes the switch along the macro, medium and micro databases by component technology. It applies to the change of different COD users due to its simple design and quick maintenance.4. Adoptes fuzzy mathematics evaluating tools to appraise the quality of courseware. It provides scientific foundation to deal with multi-media courseware.