Ventana software support forum

Hi Thank you for your quick reply. I was about to invest time on Venapps, and I am happy to know that it will no longer be supported. Is it necessary to wait for the new tool and is it possible to use something else meanwhile? When will the new tool become available? I studied the possibilities to p...

Hi The difficulties using the new gui, come partially from the fact that it is quite different from the old one, that was rather similar to the still older one that I used so far. I had found with the time interesting shortcuts that I will have to find again with the new gui. For instance with the o...

Very sad new for me, that you will retire the old gui. i tried t use the new gui. Building a model with the new gui, triple my building time.
I will try to keep the present version as long as possible.

JJ

Fortunately this is the only model that cannot be switched to the old guy and cannot be loaded when the old gui is on. All the models work correctly. I suppose that something happened when building the model with the new gui on. Anyhow finding the old gui much more practical, i wolk now only with th...

If I open your model in the download repository, it works fine and I can switch tp the old gui, but if i download the model joined, it generates again an error if Venim is set in the old gui. I am obliged to set Vensim in the new guide, to be able to load the model, And once loaded in the new gui, i...

Hi

Thank you, now it works, even if i do not know how.

Regards

JJ

Hi Joined a simplistic model that when loaded from the vensim set with the new gui, loads correctly, but once loaded it is impossible to switch to the old gui. If Vensim is open with the old gui set, it is impossible to load the same model. it opens it on the second view, and if one wants to go to t...

I have found the explanation. I have to switch to the old guy and the the text editor has a run Venapp option. But i had saved a model with the new guy. And if i try to open it with the old guy option, it shows an error. i have sent a report of the error to you. if i wand to open the model imus do i...

Hi.

Thank you for your answer.

There is no run option in the file menu in the Vensim text editor. I tried too the new text editor of the menu. It has no run either.

Regards.

JJ

Hi

I would like to run the venapp of the world model in the venapp directory of the Vensim\sample directory.

Regards.

JJ

Hi Travis Thank you for your help. I wil have to experiment and adapt the solution to my needs which are not know for the moment. For the moment i am just trying to run the world model as a Venapp in the venapp directory kof the sample directory with .vcd extension. Do you know how to do that? Best ...

Hi Travis! Do you mean that just by translating my simple model to Stella, without anything else, no server, no hosting, anybody with a web browser can use my model and be at the same time guided the same way that Venapp can guide an end user or course with a minimum of coding? Is it worth moving to...

Hi

I have found .vcd files, but i do not know how to run them.

Regards.

JJ

Hi I am trying fo learn the Venapp. But I am not able to run a simple Venapp application found in the Vensim documentation to see how it works by looking at the command script. Where can I find such a Venapp application? There are venapp files in the sample models repertory but I do not know how to ...

Hi Travis Thank you for your answer. I have no web site, and I wonder if there is a necessity to have one when using sdeverywhere. I need for the moment to allow users to use my models by guiding them starting with very simple models. I have no experience working with users, even if I have built com...

Hi Travis Thank you for your suggestions. In fact, i should use different methods, something that takes time, especially for me, having always worked for myself, and not having to manage the undestanding of other people, which seems to be the main difficulty of system dynamics and simulation in gene...

Hi Tom I do not need to create the architecture myself. I can find someone and pay him for that. I have already seen the Forio web site. I have two main drawbacks with using Forio. Forio has many proprietary features especially for the interface. Is it possible to work with Forio not using them and ...

Hi

Thank you very much.

JJ

Hi

Thank you for your answer!

Webspace from General electric?

JJ

Hi

I want to allow people to use models via the internet, eventually with fees.

What is the best way to do that.

thank you in advance.

JJ

Hi I think that it is possible to build useful models with SD and with that type of problems but not with the way that they are generally built, tested, analyzed, used and eventually implemented (very rarely). The behavior’ shape of the system predicted by the model is never compared with the real b...

Hi
It might be better to use the strict unit testing. If you use the strict unit testing two more errors will appear in both models. But I do not think that these errors have anything to do with your problem.
JJ

HI The COIN model discussed years ago in the SDS forum when it was still active, is for me a good example of an impressive model, that has no chance of ever being useful to anything or anybody except its author. Exposing the reasons would take me a time that I am no more ready to spend, because my e...

Hi Help yourself and heaven will help you. I took a look at your model. Several remarks. First there are no units in you model: a sign of a complete beginner in Vensim. Set the stricte unit testing on in the units equivalent window. Correct units is mandatory. Secondly! You should simplifiy your mod...

Hi Are you a researcher or are you working wth optimal control problems applied to real problems with planned implementation? In the second case, i use mainly dynamic programming methods (ref Bertsekas from MIT) and Vensim is very well adapted. If you are working on real cases to be implemented, we ...