Research And Application Of On-line Network Teaching System Using PAR Method Based On Streaming Media Technology

Nowadays, the World has come into a Information era . Skillful technician who are versed in computer programming are in great demand in every trade. With the finishment of eight national research tasks and several provincial projects ,for improving reliability and efficiency of software deveoloping,Research Group members of formalization and automatization software headed by Prof.Xue JinYun have come into being the PAR Method and PAR platform which help to develop the formalization and semi-automatization software.Meanwhile, Algorithm Design Teaching is difficult in computer major teaching field. If a student learns the algorithm design, he will regard programming as collecting of some simple symbols. PAR Method is a formalization method of algorithm design, development and verification, and it is simple and useful. With more students learning PAR Method and PAR Platform , they will improve their algorithm developing efficiency, do programming skillfully ,and regard programming as a kind of labor which makes beauty. It is our best wish.Research in this paper is in the context of the PAR Method and PAR Platform. The research realizes a Network Teaching platform which is named On-line Network Teaching System Using PAR Method Based on Streaming Media Technology(ONSSMT). ONSSMT helps learner develop normative and high-quality program.Main jobs in this paper includes the following aspects: 1 researches the content and application of Streaming Media technology; 2:researches the principle of Windows Media technology which is adopted by ONSSMT; 3: Combining the teaching theory,designs a streaming courseware which introduces PAR Method;4:researches and realizes the roush model of ONSSMT. The key content of streaming courseware for ONSSMT is the PAR Method. ONSSMT is realized by streaming media technology. The Client computers log on the Server computer and then the learners learn the courseware through network. They receives the information continuously.Characteristics of the ONSSMT are as follows: 1: The tool of making the streaming courseware is the software named Courseware Dreaming Factory. It produces the streaming courseware automatically. This software includes the video data from USB Camera, audio data from microphone, and the video data from real-time computer screen;2:The courseware has the characteristic of streaming media. Compared with non-streaming courseware.the quality of video,audio information gained by the Client is improved greatly. Quality of Picture is clear ,color is good, and the voice of teaching teacher is vivid. ONSSMT improves the effect of teaching; 3:Under the guidance of teaching theory, we designs the teaching frame of the courseware,, focus on programming theory and improves the learner's programming ability, the effect of interactive teaching is obvious;4:The ONSSMT has the characteristics of extension and migration., and accords with the most advanced and popular solving method in network education field at present.