Trust Development and Activity Understanding Based on Advanced Petri Net Model for Virtual University

摘要

Trust information is needed for both learners and teachers in virtual university system. In this paper, we presented an advanced Petri Net model to manage the workflow of a web-based multiple participants in virtual University. The presented approach not only can conspicuously help the developer to comprehend the interaction relationship between the client-server virtual environments but also to easily construct a shared and trusted virtual world. We proposed a e-learning system based on the scaffolding theory. Learning activities of students and teachers are supervised and understanded by each others throuthing an intelligent control system. Students and teachers have their individual activities and reports that were stored in database. Their behaviors including the student's self regulations and the teacher's/virtual campus regulations are performed and built with trust development. Problems of providing the multi-user interaction on the Web and the solutions proposed by the Petri Net model are fully elaborated here. This paper can be used as a basic/fundamental research framework and tools to study and understand the characteristics of e-learning and to explore its optimal education application.