Ventana software support forum

Posted by ""Douglas Franco"" <dfranco@cantv.net> Jay Forrest ask about our experience making SD efforts last. You can make SD work over time, if you want to do so. Management Information Systems have implicit rules which may determine behavior, because their implied policies driv...

Posted by ""Douglas Franco"" <dfranco@cantv.net> George and Jack insightful remarks concerning the modeling a problem or a system is quite useful. The Yogi Berra' advice, ""If you do not know where are you going, you may not get there"", comes into play. Howev...

Posted by ""Douglas Franco"" <dfranco@cantv.net> Alan, Numbers are not necessarily, 1, 2, 3.1 or I, IX, XX like in Romans. The math essential requirement to make a set numerical is to have a relation of order among the elements of the set. If you can say that a person or an insti...

Posted by ""Douglas Franco"" <dfranco@cantv.net> Sometimes, exogenous inputs determine behavior. There has been concern about what it means an exogenous variable. A sine wave is presented as an evidence of the fuzziness of the concept. Reference modes are exogenous inputs to the ...

Posted by ""Douglas Franco"" <dfranco@cantv.net> The continuous model of the discrete formulation output(t) = intput(t-L), where L is the length of the delay does need infinite levels. Therefore, this continuous model can oscillate, as John pointed out. But it is a model. Sometim...

Posted by ""Douglas Franco"" <dfranco@cantv.net> Dear Fred, There was a perception of an excess of past due bills, because the increase in sales and inflation raise those numbers and the fraction of due bills increases. Inflation increases payments' defaults, because appliances w...

Posted by ""Douglas Franco"" <dfranco@cantv.net> his is an extremely simple, but real case. A company sells appliances in a poor neighborhood by monthly payments, salesperson were door-to-door ones, and they also collect bills. They receive 2% for each bill collected. The stock o...

Posted by ""Douglas Franco"" <dfranco@cantv.net> Capitalize or not capitalize, that is not the question. To be or not to be, that is the question. As khalid has pointed out, there is more in SD that we are already using for better insights, threre are a lot of issues in heaven an...