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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  • Modular Entities

    This video demonstrates the use of entities to: represent markets with sparse offerings and new product introductions, create new structure on the fly, from data or random events model multiple scenarios simultaneously for an aggregate infection model, model the same infection process on an agent based social network, and calibrate a function to time series

  • Entity Selection by Attribute

    Need to see all the model year cohorts of diesel vehicles in your fleet? No problem. Ventity’s Entity Picker lets you select entities for viewing by model run, unique ID, or any entity attribute. Similarly, you can create collections of entities by attribute, and use those to compute aggregates – sum, average, maximum – for

  • Flexible Development Environment

    Work efficiently with dockable windows and non-modal dialogs.

News

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

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  • What’s New 2022?

    News on Vensim and Ventity from our User Group/Demo session at the 2022 System Dynamics Conference:

  • Introduction to Ventity Workshop

    We’ve made our usual workshop content from ISDC 2022 permanently available on video. The latest is an Introduction to Ventity, featuring an interesting simple agent-based model: Materials and models used are in this archive: Ventity Intro – Agent.zip You may also be interested in other Ventity videos, particularly the shorter introduction in Doing Classic System

  • Ventity 4.8 Release

    Release 4.8 is primarily an under-the-hood upgrade, with enhanced performance and functionality supporting use of large models in embedded systems. Contact us if this application is of interest. There are also bug fixes and minor usability improvements, including: Optimization setup improvements. Fix for issues with the undo/redo stack. Multi-slider interface improvements. Exclusion of system variables