Ventana software support forum

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Pamela. I would have liked to answer too many of the mails of this thread, but it is impossible. But I think like you that people are mostly interested by events of their current life. The most common example of SD application the bee...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Martin > From all the numerous reasons of the slow acceptation of SD yours is > to my opinion the first one to consider. I want too to congratulate you about this statement that should be normally difficult to recognize for an academi...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Colin Building a model without any data is ate the same time easier technically (no cumbersome calibration) and much more difficult conceptually without the guidance of experiences. To my opinion there are fundamentally two kinds of s...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Lou I am not of course directly concerned by the lack of use of SD by US government agencies but we have the same problem in France and in Europe. For instance the French government has not been able to stabilize the economic growth t...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Francisco I believe like you that feedbacks are systemic (the notion of system is not easy to define) but when you consult the web sites of different DES packages, you will generally not see nay reference to any feed back. (Example SI...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi every body. About Anylogic, one thing is not clear to me. With usual DES packages you do not have any feed backs. You can have levels that are cumulated all over the time of the simulation but with no regular values during the simulat...

Hi André Thank you for your reply. I will have to learn a bit more before going further in my understanding of the problem. I will read the papers from Geoff Coyle in the SD review and have ordered his recent book But it is on strategy and I do not know if it is the subject of the book. I have tried...

Hi every one I have consulted the list of papers presented at the next SD Conference in Oxford. One has interested me very much at first it is: >From Reichel, André Number 266 (Re-)Structuration of System Dynamics, The first part is very interesting for me, summarizing relatively well the difficulti...

Hi Martin This question is not only fundamental to SD modelling but to any method that is systematic, as long as the environment has not changed too much between the two successive models. I would be much interested to know if the first model had any influence on the decisions taken and if after a p...

Hi Francisco It is difficult not to be interested in the different incentives that can motivate people. In my business the motivation is responsible of more then 80% of its results. Finding ways is another matter. I have struggled for more then 30 years and have found none, except working closely wi...

Hi John You say that Learning is a change in behaviour due to experience. But Why use the word 'Learning' ? For that definition I would prefer the word adaptation. The word 'learning' conveys a positive and normative idea that is not always associated with change in behaviour. A child with 'bad' par...

Hi Mike Collaboration leads the world. I can see two different kinds of collaboration: collaboration between people with or not with hierarchical links. In my business where collaboration is critical, I have found that the best way to foster collaboration is to share the problems of the people by wo...