“…Despite these attempts, however, complex and large-scale models are very hard to build using CPN or their extensions. In order to ease the modelling of complex systems using Petri nets, some synthesis methods have been proposed, both for ordinary Petri nets (Der Jeng & Di Cesare, 1990;Zhou et al, 1992;He et al, 2000;Badouel & Darondeau, 2004;Zhi-Jun et al, 2008;etc. ) and for CPN (Micovsky et al, 1990;Baldassari & Bruno, 1991;Ezpeleta, 1993;Shang et al, 2004;Khadka, 2007;etc.).…”