IPAT-S Software Suite is a collection of supporting tools for the IPAT-S modeling language. The interpreter is written in C/flex/bison, while the supporting GUI tools are all written in Tcl/Tk.
https://sourceforge.net/projects/ipat-s/
![](https://a.fsdn.com/con/app/proj/ipat-s/screenshots/40067.jpg/1)
https://sourceforge.net/projects/ipat-s/