Based On Asp. Net Ajax Network Teaching System Design And Realization

With the development of the Internet, people pay more attention to the development and use of network instruction system. People can study in anytime and anywhere by the network education, because it breaks the time and space restriction of traditional education and it realizes the sharing of learning resource. However, most of the existing full-featured large-scale network instruction platform has some defects. And they are difficult to use for high hardware demands and insufficient flexibility. All of these limit its widespread use to a certain extent.In this dissertation , the"Visual FoxPro Programming"course online network instruction system is built using modular design method, based on constructivism and the analysis of the network instruction system of status quo and the characteristics of our own students. It is the better to meet the needs of teaching and to provide a good self-study platform for students. In the network instruction system, the teacher can dynamic manage all varieties of teaching resources, add or delete all types of resources according to degrees of concern about resources. The teacher can also provide personalized learning strategies for students in the individual counseling system. Students can get a variety of teaching resources that they need from the network instruction system at any time according to the concern degrees of all resources, and this helps the students learn more effectively. The system also provides students a self-test platform to enable students to have an accurate grasp of their own learning, so as to adjusting their own learning strategies. An answering questions platform and a individual counseling system are provided, they allow the exchange of students and teachers at any time, thus students are able to promptly solve the problems encountered in the learning process.The B/S structure model is used for the whole system. Microsoft Visual Studio .Net 2005 and Asp .net 2.0 Ajax frames are used as main development tool. SQL Server 2005 Express is used to manage the database. And ADO .Net is used to implement access to the database. Integrated application of technologies enables the system to become an easy to operate, normative network-assisted teaching system with good usability, maintainability, scalability and manageability. The Ajax Web development technologies are properly applied in the system, making user interface of the system friendlier.The network-assisted teaching system as a curriculum teaching system for teaching provides a good platform and a good application prospect.