Date Added: Jan 2012
Mobility induces new challenges for dynamic systems, which need a new conceptional treatment: systems that deal for example with mobile agents need extended security concepts to handle the risks, induced by foreign, untrusted agents. In this contribution the authors use object nets to model mobile systems. Object nets are Petri nets which have Petri nets as tokens - an approach known as the nets-within nets paradigm. Object nets are called elementary if the net system has a two levelled structure. In this paper, they apply structural analysis methods for object nets - namely place invariants - to a simple case study modelling mobile agents.