Industrial strength simulation software for improving the performance of real systems. Vensim's rich feature set emphasizes model quality, connections to data, flexible distribution, and advanced algorithms. Configurations for everyone from students to professionals.

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Some features & applications of Ventana simulation products:

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  • Resources

    Browse our list of resources related to system dynamics and Vensim. Read More

  • Applications

    Vensim can be used to solve a variety of real-world problems.

  • Real Dynamics

    Fourteen reasons to move up from spreadsheets.

News

We invite you to read about recent Vensim releases and other news:

  • Vensim Causal Loop Diagramming

    This video shows several ways to build causal loop diagrams in Vensim. We start simple with Vensim PLE, and then illustrate some additional features, like navigation links, that are possible in DSS. The first ten minutes should have you up … Continue reading

  • ISDC 2016 Best Poster 2016

    Congratulations to Joona Tuovinen for receiving the Best Poster award at ISDC 2016, for The Dynamics of Product Commonality: implications of the circular causality between product and firm structures. The conference proceedings include the paper and Vensim model in the … Continue reading

  • Collaboration in Ventity

    This video takes a look at opportunities for team model building in Ventity. Ventity has a modular structure, with each entity and dataset in a separate XML file. That makes it practical to use source control systems (like subversion or … Continue reading

Vensim Video Library

  • Vensim Causal Loop Diagramming This video shows several ways to build causal loop diagrams in Vensim. We start simple with Vensim PLE, and then illustrate some additional features, like navigation links, that are possible in DSS. The first ten minutes should have you up & running on the basics. https://vimeo.com/179249938
  • Collaboration in Ventity This video takes a look at opportunities for team model building in Ventity. Ventity has a modular structure, with each entity and dataset in a separate XML file. That makes it practical to use source control systems (like subversion or git) or sync software (like Dropbox or OneDrive) to manage file sharing and versioning. Once ...
  • Model Analysis – World Dynamics This video walks through a critique of the World model that kicked off the Limits to Growth debate, starting with Forrester’s World Dynamics, followed by World3 and the Limits to Growth and many subsequent works. The purpose of this video is not to discuss the mapping of the world models to the real world, though that ...
  • Ventity Introduction with Infection Models We were very pleased with our Ventity workshop at the SD conference in Delft. We had a good crowd, with interesting questions and lots of potential applications that will benefit from our new approach. This series of videos walks you through most of the workshop content. The workshop models are in InfectionSeries.zip, and you can get ...
  • Getting Started with Ventity – Help System Models These videos walk you through the basic Ventity models in the Help system: https://vimeo.com/134983029 https://vimeo.com/134983416 https://vimeo.com/135000662
  • Vensim’s new partner – Ventity ventityAt the System Dynamics Conference in Delft, we showed a complementary new product – Ventity – that solves some problems that can be intractable in Vensim. Here’s a quick preview: http://vimeo.com/vensim/ventitypreview There’s a Ventity poster and more detailed white paper in the conference proceedings: Ventity Poster ISDC 2014 Entity-Based System Dynamics White Paper
  • Running models with Vensim PLE and the Model Reader PLEreaderA brief tutorial on running models with Vensim PLE and the Vensim Model Reader.
  • Causal Tracing in Vensim causalTracingA tutorial on Causal Tracing™ – following the chain of causality through a model for insight and debugging.
  • Lookups in Vensim lookupsA tutorial on building and using lookups (table functions) in Vensim models.
  • Building a Simple Vensim Model vensimA quick tutorial on building and running a new Vensim model.