Research On Key Technologies Of Net Courseware And Its Application

With the rapid development of Internet, the net-based education, as a new teaching form, has played an important role in distance education. Accordingly, the quick development of net-based education leads to an urgent needs of lots of high quality net coursewares. Under this kind of situation, based on abundant practices and effective works of two net courseware projects, the thesis makes some researches on net courseware developing and realization technology. The main contents includes:Chapter One looks back CAI developing history and introduces CAI research situations and prospects CAI developing tendencies. Also, it discusses the CAI developing background and application characteristics and evaluating principles based on B/S network structure. Finally, it puts forward the research background and research contents of this thesis.Chapter Two discusses the various common technologies to develop net courseware. Also, it discusses the realization structures to develop them.Chapter Three discusses the developing situations technologies of virtual reality based on B/S structure. It also discusses how to realize the virtual model subsystem of the engineering graphics net courseware.Chapter Four analyzes many kinds of navigation styles, makes many researches on navigation realization technologies and describes its common appearances. By synthesizing lots of navigation technologies, a reasonable and convenient navigation system of the engineering graphics net courseware is contrived.Chapter Five introduces two network transmission ways for distance teaching and analyzes its realization characteristics and network structure. At the same time, it puts forward the key technologies for designing courseware to be used on these kinds of network structures.Chapter Six introduces the software and hardware environments and system developing processes for designing engineering graphics net courseware. Furthermore, it explicates the technology realization and realization pages of each engineering graphics net courseware subsystem.Chapter 7 gives a brief summarization about the thesis and prospects the future works.