News coverage of System Dynamics industry

Open sourced web SD engine – Kickstarter funding

Open sourced System Dynamics web engine

Bobby Powers, iSeeSystems alumni and part of the development team behind STELLA Modeler for the iPad, is creating a free web platform for System Dynamics models on Kickstarter called “Approachable System Dynamics”. The goal is to create a no download, no cost method to share System Dynamics models online:

I want to enable the staggering breadth of existing system dynamics models and insights to spread at the speed of the web, and to drastically lower the friction and barrier-to-entry for creating and modifying SD models. To accomplish this I want to complete a pair of web-based technologies to be finished by the end of June, 2014:

  • An open-source library for displaying, running and exploring models in a web browser, with no reliance on plugins, desktop software to install or a specific web host.
  • A free, web-based model editor focused on traditional stock and flow system dynamics modeling. Accessible from web browsers on desktop computers, laptops, tablets and even phones, with nothing to install to get started.

Here’s a short video about the project:

Currently the project can simulate System Dynamics XMILE models in Firefox, Chrome and Safari.

The end product Javascript library will be open source. The sd.js library will be developed and released under the permissive MIT license, which gives its users the right to use, modify, sell or distribute the sd.js library however you see fit.

Interested in funding the project, go to the Approachable System Dynamics’ Kickstarter page.

STELLA Modeler System Dynamics iPad modeling app previewed by isee systems

Looking for SD software that works on a tablet? A System Dynamics iPad app is coming soon from the maker of STELLA and iThink.

At the 2013 International System Dynamics Conference, isee systems previewed STELLA Modeler for iPad. The iOS app is designed to create and run STELLA and iThink models. You can both create and run SD model on an iPad.

Billy Schoenberg, a developer with isee Systems, demoed the app for SDwise. In seconds, he created a one stock and one flow System Dynamics models on an iPad:

Stella Modeler iPad System Dynamics app demoed by Billy Schoenberg, isee Systems developer

Stella Modeler iPad System Dynamics app demoed by Billy Schoenberg, isee Systems developer

This System Dynamics iPad app will have cross-platform compatibility. Models created with STELLA Modeler for iPad can be transferred to and from PC or Mac as an email attachment.

What about the release date? STELLA Modeler for iPad is currently set to go on sale around Halloween.