Ventity 3.0.1 Released

This is a minor maintenance release, but it brings substantial improvements to the beta GIS visualizer. See the Help System for details.

Ventity 2.1 Release

We’re excited to announce the newest Ventity release: version 2.1 This update comes along with a new option for Encrypting your Ventity models, ensuring only verified users can access your model. Encryption is only available for use in non-evaluation versions of Ventity for security reasons. Along with Encryption, we’ve been working on streamlining the Error […]

Ventity 2.0.2 Released!

With the Ventity 2.0.2 release we’ve taken some time to focus on improving and fine-tuning some of our newer features while we prepare the next big content release of Ventity. To that end, we’ve revamped the macro commands recently added to Ventity. We’ve also fixed some issues with loading Vensim models into Ventity via Vensim […]

Ventity 2.0.1 Released

We’ve been hard at work on the Ventity 2.0.1 release and wanted to highlight some of the new and improved features – it’s actually a significant upgrade – more of a “2.1” than the version number indicates. We’ve rebuilt the autocomplete text prompts in stocks, flows, auxiliaries and actions to list the variables linked on […]

Ventity 2.0 Full Release

Following up on the Ventity 2.0 Beta, the full commercial release of Ventity 2.0 is now available.

Ventity 2.0 beta Release

Ventity 2.0 beta, our most ambitious update yet, is here! We’ve added several new key features (and a few improvements to existing ones) that we’d like to take a moment to highlight. First up, to help with model creation and clarity we’ve added the dynamic functions Smooth, Trend, Forecast and Delay which can be accessed […]

Ventity Release 1.3

Ventity release 1.3 has arrived! Much of what’s new is under the hood, including big performance improvements and infrastructure to support deployment as a web service, with Forio support coming soon. There’s also a new architecture for lookup tables, with functions for extrapolation and finding the min, max, slope, and area under curves. The builtin […]

Ventity Release 1.2

Ventity version 1.2 has arrived! A big new addition to the Chart Manager allows for editing of global settings to allow you to better customize and save the kinds of charts you want displayed. We’ve also modified the charts themselves to be much more responsive, and have improved the Entity Picker‘s tracking, and have been […]

Ventity Release 1.1

Ventity version 1.1 has launched! We’ve got several new features in addition to those highlighted in the pre-release news post. In addition to the Chart Manager, which helps with storing, sorting and customizing your charts, Causal Tracing, useful for fast and effective analysis of model dynamics, and the GetCategory and DelayInformation functions, we’ve also redone […]

Ventity Pre-Release 1.1

The Ventity pre-release for version 1.1 is here! We’ve added several new features that we’d like to highlight along with a host of other improvements. First up, the Chart Manager is a new tool which will be automatically opened whenever you plot a variable in Ventity. Each Chart can be saved or altered individually, with […]

Vensim 7 Release

Vensim 7 is available for download or purchase in the Vensim store. This includes several significant new features, including: – Interactive sensitivity runs in Synthesim – Percentile export for sensitivity runs– Calibration payoffs can now compare model variables to one another as well as to data (great for synthetic data experiments)– A trigger for data […]

Ventity Release 1.0.2

Ventity is just getting better – release 1.0.2 is now available for evaluation and purchase. Download a copy now. Entity Picker Improvements The revised Entity Picker is much faster than the initial version, which makes it easier to analyze large populations of entities. You can easily pick out individuals, or slice collections by attributes, to […]

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

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:

December Sale

If you’ve been waiting to move to the premier dynamic modeling tool, or to extend your maintenance and upgrade to the latest version of Vensim, now is a great time. All Vensim editions are on sale, 20% off, through the end of December. Buy direct at the Vensim store. At the checkout stage, enter the […]

Jay Forrester, 1918-2016

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.

Ventity Beta E48, October 6, 2016

The latest beta is #E48, October 6th. Get it here. There are several improvements over the September release, but one that’s particularly helpful is color-coordination of entity traces across multiple charts: We’re preparing for commercial release, so this version is testing licensing infrastructure. For the moment, this could hardly be easier – just click the […]

Ventity Beta update E30, September 27, 2016

The latest beta is #E30, September 27th. Get it here. There are many refinements in this version, and stability is very good. There are too many items to list, but here are a few representative improvements: Causal tracing tables simplify debugging Copy-paste stability much improved Multi-sliders for Synthesim-like control Optimization with vector inputs and outputs […]

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.

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 Supporting Material.