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DESMO-J Simulation Framework Logo 720px.jpg
Developer(s) University of Hamburg, Germany
Initial release 1999 (1999)
Stable release
2.4.1 / March 26, 2014; 2 years ago (2014-03-26)
Development status Active
Written in Java
Platform Java platform
Size 5.2 MB
Available in English
Type Discrete event simulation library
License Apache License, version 2.0

DESMO-J is a discrete event simulation library developed in Java.


DESMO-J is an acronym for Discrete-Event Simulation Modelling in Java.[1] DESMO-J allows for rapidly and flexibly building discrete event simulation models in Java, supporting both the event-oriented and process-oriented world view. DESMO-J provides a comprehensive set of readily usable Java classes[2] for stochastic distributions, static model components (like queues or resource synchronization), time representation and scheduling, experiment conduction and reporting. Supported by this simulation infrastructure, the user is free to concentrate on specifying the model's behaviour in terms of events or processes.


DESMO-J Simulation Framework, Screenshot Experiment GUI
DESMO-J Simulation Framework, Screenshot of 2D animation
DESMO-J Simulation Framework, Screenshot of 3D visualization

DESMO-J has been developed at University of Hamburg's research group of Modelling and Simulation. First released in 1999,[3] the environment continues to be maintained and kept up to date, now in terms of a SourceForge Project. DESMO-J's predecessor was DESMO, a Modula-2-based simulation library,[4] which in turn was inspired by DEMOS, a system for discrete event modelling on Simula.[5] A companion book has appeared 2005.[6]


Besides providing a hybrid discrete event simulation environment able to process event as well as process model descriptions, key features of DESMO-J include:[7]

  • A GUI for experiment conduction
  • 2D animation, based on icons and symbols
  • 3D visualization, based on Java3d

Furthermore, an online tutorial is available on the project web page.

Most real-world DESMO-J applications focus on manufacturing and logistics.[8] DESMO-J is integrated into business process modelling tools like Borland Together[9] or Intellivate IYOPRO,[10] augmenting these tools with simulation functionality.[8][11]

See also[edit]


  1. ^ "DESMO-J: Overview". Retrieved 4 February 2014. 
  2. ^ "DESMO-J: API". Retrieved 4 February 2014. 
  3. ^ "DESMO-J: Version History". Retrieved 4 February 2014. 
  4. ^ "DESMO-J: Overview". Retrieved 4 February 2014. 
  5. ^ Birtwistle, Graham M. (1987). DEMOS: a system for discrete event modelling on Simula. New York, NY, USA: Springer. ISBN 0-387-91301-7. Retrieved 4 February 2014. 
  6. ^ Page, Bernd; Kreutzer, Wolfgang (2005). The Java Simulation Handbook - Simulating discrete Event Systems with UML and Java. Aachen, Germany: Shaker. ISBN 978-3-8322-3771-4. Retrieved 4 February 2014. 
  7. ^ "DESMO-J: Basic features". Retrieved 4 February 2014. 
  8. ^ a b Göbel, Johannes; Joschko, Philip; Koors, Arne; Page, Bernd (2013), "The Discrete Event Simulation Framework DESMO-J: Review, Comparison to other Frameworks and Latest Development" (PDF), in Laroque, C.; Himmelspach, J.; Pasupathy, R.; Rose, O.; Uhrmacher, A. M., Proceedings of the 27th European Conference on Modelling and Simulation, Ålesund, Norway  Missing or empty |title= (help)
  9. ^ "Borland Together Release Notes". Retrieved 31 March 2014. 
  10. ^ "ICC mission staement". Retrieved 31 March 2014. 
  11. ^ Joschko, Philip; Haan, Johannes; Janz, Tim; Page, Bernd (2012), "Business Process Simulation with IYOPRO und DESMO-J", in Bruzzone, B.; Cayirci, L., Proceedings of the International Workshop on Applied Modeling & Simulation, Rome, Italy  Missing or empty |title= (help)

External links[edit]