An e/m-Learning Architecture Based on Alternative Studying Paths

This paper discusses some aspects of e- and m-Learning, paying particular attention to the variety of contents and access modalities. The consequences of such features are multifaceted: for instance, many "alternative studying paths" can be defined, where activities are scheduled in different ways. The need consequently arises for the control of the whole task. On the basis of simple observations, a model based on graphs and Petri Nets is proposed for the representation and control of a studying process.