the world leader in systems thinking software
 
"Systems Thinking software like STELLA and iThink is an increasingly valuable tool for constructing understanding about all kinds of dynamic systems from natural environments to team dynamics to economic markets."
Peter Senge,
Author of The Fifth Discipline
Founding Chairperson, SoL
Education and Research
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Business
Product Info
Now shipping v9.1.4
Sample Models
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STELLA Environmental Bundle Modeling Health Systems

Save on our NEW specially priced STELLA and iThink Bundles

Publish models on the web with isee NetSim. Version 1.1 now supports graphical input devices and more!

Build skills to address complex health system issues. 
Learn about our 
new online course
!

The new Version 9.1.4 isee Player lets you view and share iThink and STELLA models for FREE.
(updated 5/04/2010)
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