Ventana software support forum

Regarding CLD vs. S&F diagrams: Jim Hines (jimhines@interserv.com) said: "Id like to think that a good system dynamics person is technically able to use either form at the initial stages of a project and chooses one form over the other based not only on personal preference but also on the n...

1) About two years ago, I got tired of headaches caused by applying algebra to initial level values for models or model fragments that I wished to test by starting in equilibrium. I bought one of the symbolic processor programs, Maple V, and found that I could reduce significantly the time spent on ...

In demonstrating a system dynamics model in a client meeting, a fellow asked if all of the data in a plot was "true to scale". I hadnt thought much about that topic before and now wonder what an appropriate response might be. The simulation output referred to was displayed in a Vensim Cust...

John Sterman suggests recreating classic models in ones own computer. I second that suggestion. Some learners may have the ability to jump right into abstractions and formulations, and that is a wonderful gift. For those of us who have to start at a more concrete point, working by copying the master...

Proliferating the use of system dynamics to help solve complex problems requires an adequate supply of problem-solvers and demand (an adequate recognition of problems). However, not all of the problem-solvers are acceptable to the persons with the problems (call them clients). That is, there is a so...

John Sterman writes: "A good consultant tailors the tools and presentation of concepts to the needs, background and capabilities of the client. Actually, I believe you should try to stretch the clients mental models a little and not dumb down the material to the lowest common denominator... You...