Experiences with workflow management: issues for the next generation
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
Dynamic change within workflow systems
COCS '95 Proceedings of conference on Organizational computing systems
A Light Workflow Management System Using SimpleProcess Models
Computer Supported Cooperative Work
Lectures on Petri Nets I: Basic Models, Advances in Petri Nets, the volumes are based on the Advanced Course on Petri Nets
Lectures on Petri Nets I: Basic Models, Advances in Petri Nets, the volumes are based on the Advanced Course on Petri Nets
Computer Supported Cooperative Work and Petri Nets
Lectures on Petri Nets II: Applications, Advances in Petri Nets, the volumes are based on the Advanced Course on Petri Nets
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Petri Nets have been popular among the developers of workflow management systems for more than twenty years [5]: even if we do not consider the early work of Petri himself and Anatol Holt on modelling procedures with Petri Nets, Paul Zisman and Clarence Ellis adopted Petri Nets for modelling workflows in the late seventies. From those early years, there has been a growing amount of proposals adopting different classes of Petri Nets as the modelling framework of a workflow management system. The main reasons of the popularity of Petri Nets are the following: • they allow to give to workflow models a univocal non ambiguous semantics; • they have an easy to read graphical representation; • they may support a hierarchy of abstraction levels; • they are executable models, well suited for both simulation and software specification.