Ventana software support forum

Good evening.

I have constructed a Vensim model that has a large number of quantitative parameters and it seems to behave well. However, to make the model more "realistic", I probably need to include all of the qualitative parameters (most of which are due to human error). Does anybody how I can do this, or get information on how to do this? I guess the big problem is - how do you model human behaviour?

Vensim models need to be quantitative - at least if you want to simulate them. However, that does not mean that everything needs to be measureable - just determine a reasonably measurement scale and work with that. There is a model on procrastination that comes with Vensim that might be a useful reference and lots more in the literature.