Research On Network Teaching System Technique And Application

With the development of internet technology, network education, as a new education pattern, is changing the concept of traditional education, and brings limitless vitality to education and teaching. Building a integrated, unified, high performance and stable network teaching system is an important guarantee for network education.However, there are still more or less defects in present online teaching system, such as complicated operation, single performance, weak interaction, poor maintainability, and difficulty of sharing resource.In this paper, first, it analyzes the present situation of network teaching system, and elaborated by the idea of network teaching design, it introduced the basic concept, developing technique and developing process of online teaching.Second, it researches several key techniques of object oriented programing. Includes object oriented method,establish model technique, Struts module design,database technique, Hibernate persistence technique and so on.On the base of demanding analysis to online teaching of one college and university, it presents a five layer architecture and detailed describes the function of representation layer, business layer, service layer, persist layer and database layer in the system. This structure can effectively resolve the problems existing in present online teaching systems, which are difficult to interact and sharing resource.It provides a good flat-top for establishing a actuality online teaching systems.Third, based on actuality condition of one college and university, specified analyze the requirement of main function, uses methods and techniques above, designs and establishes a experimential type of network teaching platform. This platform is divided to examination subsystem, help-on-line subsystem,courseware subsystem and system maintenance subsystem initialiy.It was detailed described that the analyzing,designing and realizing of online examination subsystem,Presented the use-case diagram, class diagram, and sequence diagram for the demanding of online examination in this paper.In the part of examination subsystem, presents a segmentation-recursive arithmetic based on difficult level and a random selecting questions arithmetic based on state link are use to assemble exam paper automatically. In privilege management, it designs and implements multi-level privilege management...