Neil,

meanwhile my experience is the same. But the argumentation (to pass on packages except official ones) is somewhat uncomfortable. One of the great strengths of systems like R is that there is a living community producing libraries with high quality.

And again: Wolfram should anticipate that buyers of WSM want to model queues. This use case is really obvious in the context of modeling software and not beside the point. @Markus: you kindly offered help for questions about SystemDynamics.I will formulate my questions carefully and post them into this discussion.

Best regards Volker

I find it easier to just use the built-in event handling in Modelica. The problem with libraries is that it becomes difficult to understand how something was modeled. For a simple object such as a mass or resistor, it is straightforward. Most of the difficult debugging that I have encountered is when I have relied on someone's library/model and realized that what they did was not consistent with my understanding of the model. Modelica is such a rich language, I suggest that you program your own blocks or use StateGraph blocks if they fit your requirements. In our models, I wound up doing my own blocks (mixed with built-in blocks) because they were simpler and easier to debug and verify. An event is triggered and my block responds to the event.

The built-in Packages are well vetted and are reliable. It is a mistake to add Packages that are publicly available but that you really do not understand -- In my experience you will likely lose more time than you save.

Regards

I have the same requirement.Deslib does not work and the WSM documentation is really poor. I am interested to come in contact with you to discuss this topic. My phone nr is +49 175 4109108. Volker

I think Only Sim Events from Mathworks and MATLAB can help you with this . Is very powerfull