Joint Proceedings of the International Workshop on Petri Nets and Software Engineering (PNSE'13) and the International Workshop on Modeling and Business Environments (ModBE'13). Satellite events of the 34th International Conference on Application and Theory of Petri Nets and Concurrency. Milano, Italy, June, 2013
These are the proceedings of the International Workshop on Petri Nets and Software Engineering (PNSE’13) and the International Workshop on Modeling and Business Environments (ModBE’13) in Milano, Italy, June 24–25, 2013. These are co-located events of Petri Nets 2013, the 34th international conference on Applications and Theory of Petri Nets and Concurrency.
PNSE'13 presents the use of Petri Nets (P/T-Nets, Coloured Petri Nets and extensions) in the formal process of software engineering, covering modelling, validation, and veriﬁcation, as well as their application and tools supporting the disciplines mentioned above.
ModBE’13 provides a forum for researchers from interested communities to investigate, experience, compare, contrast and discuss solutions for modeling in business environments with Petri nets and other modeling techniques.
In this work we consider modeling of workﬂow systems with Petri nets. A resource workﬂow net (RWF-net) is a workﬂow net, supplied with an additional set of initially marked resource places. Resources can be consumed and/or produced by transitions. We do not constrain neither the intermediate nor ﬁnal resource markings, hence a net can have an inﬁnite number of diﬀerent reachable states.
An initially marked RWF-net is called sound if it properly terminates and, moreover, adding any extra initial resource does not violate itsproper termination. An (unmarked) RWF-net is sound if it is sound for some initial resource. In this paper we prove the decidability of both marked and unmarked soundness for a restricted class of RWF-nets with a single unbounded resource place (1-dim RWF-nets). We present an algorithm for computing the minimal sound resource for a given sound 1-dim RWF-net.