Ventity is software for modeling dynamic systems. It combines a friendly, pretty interface with the power of modular entities, data-friendly architecture and dynamic model structure changes.

Featured

Some features & applications of Ventity:

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  • Interactive Charting

    You can pop up a chart on any variable in a diagram or list from a context menu. Charts feature smart scaling, brushing for values and legends, and drilldown, all a right-click away.

  • Autocomplete

    The Ventity equation editor, and other forms, are non-modal and use predictive typing. That makes it easy to navigate, view diagrams, and enter just what you need, without a complex dialog. Because a model has a limited set of terms, predictions are good, and model-diagram and units consistency checks further help to prevent errors.

  • Vensim Model Import

    One of the newer features of our recent releases is the Vensim Model Import tool, and we’d like to take a few moments to walk through some of its uses and some tips for importing models from Vensim to Ventity. The first thing to keep in mind is that importing a Vensim model can only

News

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

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  • Ventity 5.1 Release

    Ventity 5.1 adds new features including Run Lists, Style Overrides, and options to hide run-time warnings.  This version also supports the use of entities created during the simulation by sensitivity and optimization parameters.  See the help for more details.

  • What’s New @ ISDC 2024

    Video from the Ventana Systems vendor demo/user group session at the 2024 System Dynamics conference in Bergen. See also: the new workshop video.  

  • Introduction to Ventity – Projects & Reuse

    Our workshop from ISDC 2024 in Bergen is recorded below. This introduces modeling in Ventity, using a simple project model. It features the basic operations needed to build and run a model, as well as highlighting references and attributes, and reuse of structure an data. A .zip archive containing materials is available here: Ventity Intro