Vensim is designed for both soft-phase projects (
Systems Thinking), in all its versions you can easily create beautiful looking causal loop diagrams, and for creating flow diagrams - dynamic models (
System Dynamics). Vensim comes in four versions, ranging from PLE with basic features to the DSS simulation suite, which includes
advanced features and tools for creating
complete dynamic simulators including
sensitivity analysis,
optimization,
Markov chains, etc.
The great news for anyone who wants to master Systems Thinking and System Dynamics is that the Personal Learning Edition of Vensim is available
for free for personal, non-commercial use! Our instructional
literature and beginner
courses are written in such a way that the PLE version fully covers all the functions and procedures taught. Unlike most free licenses,
Vensim PLE is
not limited in any way in the number of features, time or otherwise. For
commercial and
research use, however, a license must be
purchased for the PLE version as well.