Ventana software support forum

Posted by fadl alakwa <fadlmaster1@yahoo.com> Hello After I read the controversy paper I have knowledge that the SD was not designed for predication purpose. Because it used an average parameters from the literature, which sometimes difficulte to get it. I do not know why SD is not considering with ...

Posted by fadl alakwa <fadlmaster1@yahoo.com> Hello System dynamics is the approach which was designed for study complex system, to examine the structure of the system. Is there any comparison between SD and others modeling approaches? What are the important advantages of SD on other approaches? Wha...

Posted by fadl alakwa <fadlmaster1@yahoo.com> hello every body One of the important benefits of modeling that it can predicate the behavior that can not measure experimentally by using known data. If I have 1 level (I have its behavior), four outflows (I can get it) and one inflow (I want to predica...

Posted by fadl alakwa <fadlmaster1@yahoo.com> Hello every one My model is of sixth order, 100 parameters and has two test inputs. When I calibrate model parameters for different test input with the real data I have two sets of parameters.(as example a1=0.1 for TEST INPUT 1 but for TEST INPUT 2 a1=10...