Abstract
The wide accessibility and low cost of virtual reality (VR) on the World Wide Web with the advent of the Virtual Reality Modelling Language (VRML) and VRML interpreters makes it ideal for use in providing cost-effective training for operators in selected complex technical environments. This paper presents SEDA-VRML, a VR-based learn-by-doing system developed for the training of maintenance workers in the troubleshooting and inspection of power transformers at Hydro-Quebec that is accessible from a Web browser. SEDA-VRML is a prototype application of a reuse-driven design incorporating VRML, Java and an expert system within a user interface system (UIS) architecture. The paper describes the functionality and design principles of SEDA-VRML, with key implementation results, to show how SEDA-VRML's design can indeed answer to the limitations of VRML to act as a cost-effective alternative to traditional operator training systems for operator training in VR, as well as a basis for the rapid development of future operator training systems.
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