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System Dynamics (SD) can be seen as one kind of visual representation of nonlinear control (or nonlinear dynamics in Physics), especially for application on social problems (management, economics, politics, etc). Therefore it is no surprise to find that many System Dynamicists have natural sciences or engineering background. In fact, Jay W. Forrester himself was an engineer.

While System Dynamicists commonly use software such as Vensim, iThink (Stella) and Powersim, it is actually tool independent and can be implemented in many ways.

Here is an implementation of SD library using Modelica (open source competitor of MATLAB). While it is still quite basic and not customized for SD quick use, it is probably a good bridge for newcomers to learn SD if they come from engineering background. Its interface is similar to engineering software.

For a quick glance, check out its slides and paper.

If you want to try out:


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