The unfolding technique is an efficient tool to explore the runs of a Petri net in a true concurrency semantics, i.e. without constructing all the interleavings of concurrent actions. But even small real systems are never modeled directly as ordinary Petri nets: they use many high-level features that were designed as extensions of Petri nets. We focus here on two such features: colors and compo...

In this paper, a formal model for antivirus update agent system is presented based on mobile agent technology and predicate/transition Petri nets. The mobile agent system contains two mobile agents called DCA and UNA. It sends out agents to update antivirus on client computers in a network. Each agent takes on a specified responsibility. First, DCA roams through the network and check the last d...

Interactions are communication acts which take place between at least two agents and result in information interchange. To represent these activities, formal methods can be used to model interaction flows and Colored Petri Nets (CPNs) are a handy formal language with graphical notation for modeling systems. This paper introduces wiCPN (Web Interaction Modeling Using Colored Petri Nets), a langu...