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.

  • Dynamic Structure

    In Ventity, you can introduce new entities on the fly during a simulation. You can introduce them via data, or programatically with discrete Actions. Introduce a firm into a market when you need it, or delete a cohort of products when they’re all sold. Simulate and review just your real behavior, without lots of clutter

  • Data-Friendly Architecture

    Ventity fits relational and ad hoc data sources naturally, because it represents detail with collections of entities rather than arrays. You can enter data easily, with convenient builtin tables or spreadsheet links.

News

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

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  • Ventity Release 1.0.1

    We’ve released a minor update to Ventity that resolves a “bootstrap” error on start up, experienced by a few users. If you already have release 1.0 running, there’s nothing to do – this is otherwise identical. If you’re just getting started, download Ventity with an evaluation license here. If you already have a license, get

  • Ventity 1.0 Released

    causaltracing3

    Ventity is now officially available! Learn more about it. Download an evaluation copy. Purchase a license (or claim a free one). Release 1.0 includes enhanced Causal Tracing™, with interactive trees and strip graphs:

  • Jay Forrester, 1918-2016

    jay_forrester_1950s_crop

    We at Ventana Systems sadly mark the passing of Jay Forrester, pioneer in servomechanism control, digital computing, System Dynamics and global modeling. We hope that our tools and our work may carry on in Jay’s spirit, to help people better understand and manage complex systems, tackling the biggest problems with courage and integrity.