Encyclopedia of Systems Biology

2013 Edition
| Editors: Werner Dubitzky, Olaf Wolkenhauer, Kwang-Hyun Cho, Hiroki Yokota

Cell Cycle Modeling, Petri Nets

Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-9863-7_27

Synonyms

Definition

Petri Nets are a graphical modeling formalism with numerous applications to the modeling and analysis of systems composed by multiple concurrent processes, including the molecular kinetics of cell cycle regulation networks. They are named after Carl Adam Petri, who originally defined them in his dissertation thesis in 1962 (Petri 1962).

Petri Net models consist of four types of elements:
  • Places, depicted as hollow circles, represent variables of the model.

  • Tokens, depicted as black dots, are contained into places and provide the numerical value associated to the variable.

  • Transitions, depicted as bars, represent events affecting the variables. The occurrence of the event associated to a transition is referred as the firing of the transition.

  • Arcs, linking transitions to places and places to transitions (but not places to places nor transitions to transitions), carry multiplicities defining the changes on variables as a result of transitions...

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References

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Copyright information

© Springer Science+Business Media, LLC 2013

Authors and Affiliations

  1. 1.The Microsoft Research - University of Trento Centre for Computational and Systems BiologyTrentoItaly