Design And Implementation Of The Online Homework Platform Based On.NET Technology

With the development of network information technology, network teaching has got rapid development and popularization, and become the hot topic in education and research. Network education breaks through the limit of time and space, has the characteristics of resource sharing, interactive capability. Its origin and development will change the traditional education idea, and inject more vigor and vitality to the traditional teaching.At present, all types of schools at all levels havebetter LAN software and hardware facilities, but how to efficiently use of LAN, give full play to the role of network in teaching, is worth thinking and working hard.The online homework platform as an important part of the network teaching, also need us to pay close attention to and research.This paper discusses the research significance and practical value of online homework system, and the technical idea of realization. Also it discussesthe design, development and implementation of key technologies involved in the online homework system in detail.The paper gives the technical route used in current management system as well as the B/S architecture and C/S architecture. Visual Studio2010, ASP.NET, ADO.NET, SQL Server database, and UML technology to model have briefly introduced in the paper. The paper analyzes the system functional requirementsaccording tothe goal of the online homework system, compares the file database storage with file system storage, and designthe storage structure of the system. By using object-oriented and modular idea,the paper completes the system overall functional design, the database conceptual model design and physical model design of data tables, The three layer architecture of the system design and the database diagram are given in detail.In the design of safety, the platform system adopt access control model based on the user role for general.By setting the privileges associated with a role, the user is given the appropriate role for the appropriate permissions for authorization operation, in order to complete the page level access permissionsand the fine particle levels of a single operating button in the page, the system provides a menu methods permission to operate, simplifies the authorization management, efficiently completes the power distribution operation.After the technical research and analysis on the online homework system, this paper design and implement a Internet based online course operation subsystem, personal network hard disk subsystem, curriculum sharing database subsystem, online examination subsystem, Web course dynamic experimental site on line release subsystem, it also study and realize the operation messages automatically release function, the function releasing the operating information by QQ in real-time etc.. At present, the system has been applied to the daily teaching management, and achieved good results.