Ventana software support forum

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Kim You write: <Your key point that 'value' is generated by the whole system implies, as <you say, that it is meaningless to value any individual element - <intangible or tangible - in isolation from the system of which it is a <part....

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Richard. If it was possible to include SD in the process of this obligatory method, it would give the method a new recognition. I have always been interested by the problem of valuating a business. I have more than 20 years ago, built...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi every body. The question about the utility of using past data is interesting. In many models the impression is often that the modeller is modelling more his beliefs than a real world expressed by real data. Now is it a reason for choo...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Aldo I have made the same sorts of experience. One was particularly negative. For about 10 years I had organized in my business the redistribution of its profit between three actors: the employees, the share-holders and the business i...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Tom I agree completely with your point of view. I have been managing a family SME with my brother for years and had to manage about 140 employees when the business was at its best. I can say that I have been surrounded by a swarm of f...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi everybody On Sep 8, 2007, at 7:10 AM, SDMAIL Jim Hines wrote: >> You're right that defining a problem in terms of reference modes >> pre-supposes that people have already decided to use SD. I never wrote this in any of my e-mails. I w...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Jim You used solutions meaning I suppose that there are many level of definitions. For me the first level of definition should not include anything about the solution because the problem exists independently of the solution and that ther...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi everybody I have always wondered why the SD profession does not apply to its own case the method it advocates. There is a saying in French : 'C'est toujours le chausseur qui est le plus mal chaussé.' Translation : A shoemaker is rarel...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Jim Thank you for your point of view. I have often noticed that when people in this forum and elsewhere express different opinions, it is often because they just do not talk about the same thing. It is to my opinion the case with Bob ...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi every body As one of the initiator of the thread I will give my opinion about Fred Nickol's definition. Fred writes: <From that it follows that having a good problem statement and a matching solution are basic <requirements. Yes, but ...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Bill About your first e-mail and the difficulty to control how other people decide, it sounds logical. But I did not make myself well understood and I will try to better explain what I meant. I think that people have their own logic a...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi everybody Bill Braun writes and I thank him for his answer: < I strive to keep <their eye on the problems they should solve, That seems a very wise methodology that would normally support the second choice I proposed: starting with a ...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Referencing the ""Information display challenge (SD6520) I do not think that there is much to add to Joel Rahn remark about two difficulties: first finding the critical information and then displaying it except that it is very ...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi everybody I have recently read that a fund rated by one of the rating company I think it was Standard and Poors as AAA had in one week been lowered to CCC, that means from an extremely high rating ratio to an extremely low one. What h...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Kazem I am not doing research about operations, but adjusting modelling work with ground floor necessities has been one of my principal difficulties. All of my modelling have been oriented towards ground operations so far. There are t...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Jack You write: > but not in the > case of standard bathtub structures in which perfect mixing within the > stock is implicitly assumed You are absolutely right and I was wrong. I was even persuaded that the equation As = To / 2 was t...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi everybody. There is an ambiguity in the question of Richard. Does he mean, the average total time material was in the stock or average delivery delay? Or the current average age a material in a stock? By the formulation of Little's la...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Richard As soon as the inputs and the outputs are varying you must consider if the material inside the stock is undifferentiated or not. It can follow a FIFO law and you can then use discreet functions as you will find in Vensim. If t...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Fabian I have a definition for greating somebody who is going down when your are going up in a staircase. Sd is a method that describes reality. Regards. Jean-Jacques Laublé Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.f...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Bill Thank you for your answer. I have always been puzzled about the sense of culpability that many SDers convey and the way they manage to live with this sensation. The last thread on renaming the name of the field is an example of h...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Bill You write < I'm really curious; what would we gain by increased < recognition of our field? Dropping down to the lowest rung on my personal ladder of abstraction (which is in fact no more abstract) if the field was much more reco...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi everybody. A remark about the financial resources of the SD Society. It is generally not considered as a good practice to leave, in an organisation, resources whose destination is not clearly defined. Are these resources assigned to e...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi everybody. Carl's suggestion is very appropriate. But to increase the impact of such a 'capitalization', the SD society may find a use of the monney gathered able to inspire the people's 'generosity'. Finding that use should be first ...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi everybody. I think that capitalizing or not should normally have no importance. But capitalizing may reinforce the point of view that the world is separated in static and dynamic, with a weak and not quantitative dynamic called system...

Posted by Jean-Jacques Laublé <jean-jacques.lauble@wanadoo.fr> Hi Colm There are certainly other reasons not to communicate their work from business people besides the risk of opening their kimonos. First communicating to uniformed populations about a problematic situation is difficult. Academic peo...