In: International Journal of Computer Systems Science and Engineering, Vol. 16, No. 3, pages 183-193. CRL Publishing Ltd, Leics, UK, 2001.
Abstract: The article describes two of the problems that arise in the area of generating and exploiting state spaces of the object-oriented Petri nets (OOPNs) which underlie the modelling language used in the tool called PNtalk. We first explain the influence of identifiers of dynamically appearing and disappearing instances upon the state space explosion problem. We describe and compare methods of working with identifiers based on sophisticated naming rules and mechanisms for abstracting names. Subsequently, there are discussed several approaches to specifying properties of systems to be validated by means of state spaces of their OOPN-based models.