Ventana software support forum

Posted by Jack Harich <jack@thwink.org> Goal/vision brainstorming has now gone on for 3 months. The Society Strategy Development thread started on April 1. But compared to how this is done in the business world, our work has not been productive. We have no high quality work output. There is no trend...

Posted by Jack Harich <jack@thwink.org> Kim and everyone, The purpose of this message is to discuss a fine point of strategy. As I see it, Kim will soon draw the goals brainstorming phase to a close, get to a focused goal, and then move on to the next phase, which may eventually lead to work groups....

Posted by Jack Harich <jack@thwink.org> Tom Fiddaman wrote: > Jack and others have noted that managing the globe involves two > subproblems: > 1. figuring out the problem (e.g., are there limits, what are they, > when do they become binding) This is what the System Improvement Process (SIP) calls th...

Posted by Jack Harich <jack@thwink.org> Whoops, I made errors in the first two out of three links in the previous version of this posting. Here are the correct links: http://www.thwink.org/sustain/glossary/SystemImprovementProcess.htm http://www.thwink.org/sustain/articles/005/DuelingLoops_Paper.htm...

Posted by Jack Harich <jack@thwink.org> Thanks Bob. I had noticed this morning that the 2nd CIN file reproduced scenario 2 of World3-93 perfectly, and that 2nd edition book had 13 scenarios. So, mystery solved. Here's a puzzle: Why hasn't someone noticed this before? Are there really that few effort...

Posted by Jack Harich <jack@thwink.org> I’ll be extending the LTG World3-2003 model as part of an analysis. The first step is to identify the nodes that vary with the scenarios, find the values for each node for each scenario, and then setup the model so the scenarios can be easily run. Vensim ships...

Posted by Jack Harich <jack@thwink.org> Jim Thompson wrote on Feb 11, 2007: ""My thesis research reviews several consulting engagements in which SD was the prominent problem-solving methodology. However, the causes and solutions suggested by SD did not make immediate sense to the persons c...

Posted by Jack Harich <jack@thwink.org> I've run into someone looking for a system dynamics analysis. In a nutshell a client wishes to model the European steel market to see what happens over time with the imposition of a cost for CO2. This is a complex system with many inputs, outputs and feedback ...

Posted by Jack Harich <jack@thwink.org> Bill Braun wrote: > Jack Harich opines that if the structure that produces the reference > mode is the root cause, then there is no root cause, per se. I ought In my first few years of working on the sustainability problem analysis, this is the viewpoint I sta...

Posted by Jack Harich <jack@thwink.org> Colin Beveridge wrote: > Jack > My answer to your second question (below) might be rather naïve but I > think that finding a single root cause for a complex problem might not > always be possible. Sorry, my mistake. The last sentence in the quoted section was ...

Posted by Jack Harich <jack@thwink.org> At the suggestion of a member of this list, I was working on a paper for the SD Review on the System Improvement Process. The first draft is complete. One area that may be weak or controversial is a definition of the so called root cause. I thought it was high...