Ventana software support forum

As a "futurist" who works almost exclusively in longer term models I strongly agree that systems thinking (in general) and system dynamics (specifically) can be very valuable in longer term models as suggested by Jay Forrester My work supports the concept (as Bill Harris implies) that the ...

I heartily support Jims comments but I would suggest that it can be very educational to cascade "soft" lookup functions for you are likely to learn something about the consistency of your assumptions. I.e. a cascaded series of assumptions is unlikely to match your understanding of the macr...

I must suggest that you are misconstruing my meaning (and perhaps my use of English is at fault.) I am merely suggesting that I see no assurance that the accuracy of output alone is no indication of a meaningful model. Accuracy of output can be achieved through correlation for example with no meanin...

Bruce Campbell wrote: > >My resolution is that the "correct" model is the one that most closely >mimics the actual behaviour observed. It seems to me that Bruce is disconnecting logic or structure from output. I must propose that the accuracy of the output need have no relationship to the ...

Hi John! Thanks for asking the question. It is of the kind I address routinely as a futurist. >rest of the region will help. One view is that they will, because they >provide better links to markets etc and encourage new businesses to set up >locally. The converse is that better links will give the ...

>But I am disturbed by the theme that one should model what people do and >how they make decisions. I thought the purpose of modeling was to discern >the key demands and resources so that the allocation process itself is >improved (including manager behaviors). >Jack Ring, 32712 N. 70th St., Snottsd...

>A good model must be identifiable in real world. Circular flows are >illogical as far as the real world is concerned. A software that allows >this is not appropriate for use in system dynamics modeling no matter >how compact a model it creates. Is this to imply that you believe there are no closed ...