Search found 30 matches

by Jim Duggan
Sat Jun 18, 2016 11:56 am
Forum: Open Discussion
Topic: questions about R and Anysim Python workshops
Replies: 2
Views: 2602

Re: questions about R and Anysim Python workshops

Hello Jean-Jacques, I will be delivering the "System Dynamics with R" workshop, so I can outline the potential benefits of using R with System Dynamics (and other SD tools): 1) R is open source (and free), and has emerged as a "lingua franca" for decision making across data driven approaches such as...
by Jim Duggan
Fri Dec 18, 2015 4:06 am
Forum: Open Discussion
Topic: servomechanism
Replies: 3
Views: 10437

Re: servomechanism

Hi Gary, I'd recommend George Richardson's text book: Feedback Thought in Social Science and Systems Theory. Here is a relevant quote from a review of Richardson's book (from Bowen 1992, SDR): "By identifying and comparing the different conceptual threads in the evolution of the feedback concept-cyb...
by Jim Duggan
Tue Feb 14, 2012 2:19 pm
Forum: Open Discussion
Topic: paranoia about specifying causal links
Replies: 7
Views: 6435

Re: paranoia about specifying causal links

Another useful reference for helping students focus on the problem at hand is to refer to the term "operational thinking", as defined by Barry Richmond in his paper - Systems thinking: critical thinking skills for the 1990s and beyond. (System Dynamics Review Vol. 9. no. 2 (Summer 1993): 113-133) "T...
by Jim Duggan
Wed Jan 25, 2012 2:54 am
Forum: Open Discussion
Topic: Online Course in Model Thinking - Prof Scott E. Page
Replies: 0
Views: 5175

Online Course in Model Thinking - Prof Scott E. Page

Dear all, An online course in Model Thinking is due to start next month - see http://www.modelthinker-class.org/ The overview describes the context as: "We live in a complex world with diverse people, firms, and governments whose behaviors aggregate to produce novel, unexpected phenomena. We see pol...
by Jim Duggan
Sat Jan 21, 2012 5:05 am
Forum: Open Discussion
Topic: Is the forum moribund?
Replies: 23
Views: 14939

Re: Is the forum moribund?

Hi all, Tom - good and timely post, as it is a reminder of the challenge that our community faces in having a vibrant "go to place" for online collaborative discussions. I don't think it's a technology issue at all, because the Forum provides most of the functions that are provided by linked in, and...
by Jim Duggan
Tue May 17, 2011 8:11 am
Forum: Model Analysis (SIG-MA)
Topic: SIG - Model Analysis Meeting & Poster Session
Replies: 0
Views: 9821

SIG - Model Analysis Meeting & Poster Session

Dear all, A roundtable meeting of the Special Interest Group (Model Analysis) will be held at the upcoming conference, and aligned with this we will be part of the SIG poster session where we can highlight SD work in the area of model analysis. With this in mind, I am preparing a poster, and I think...
by Jim Duggan
Sun Feb 13, 2011 6:56 am
Forum: Open Discussion
Topic: causal conflict or not?
Replies: 13
Views: 10111

Re: causal conflict or not?

Hi, The problem looks similar in ways to predator-prey, so for analytic solutions this might be worth a look: http://www.springerlink.com/content/a7868r16458053u5/ Also, for solutions to linear and more complex systems, the following book has good examples: Steven Strogatz "Nonlinear Dynamics and Ch...
by Jim Duggan
Tue Nov 16, 2010 2:38 pm
Forum: Open Discussion
Topic: systems thinking & evaluation
Replies: 1
Views: 5358

Re: systems thinking & evaluation

Thanks for the link Tom,

Hope to get to read the full article soon and might get a chance to post back then. I see also the article has a response associated with it...

regards,
Jim.
by Jim Duggan
Mon Nov 08, 2010 2:57 pm
Forum: Open Discussion
Topic: Online Book from Consulting Company
Replies: 0
Views: 5782

Online Book from Consulting Company

Hi all, I came across this the other day... might be of interest..! http://www.dontbeevil.nl/downloads/Dont%20Be%20Evil%20English.pdf It's by Sogeti Consulting company and is entitled "Don't Be Evil: Imagineering 21st Century Business". It's title is informed by Google's informal slogan (see http://...
by Jim Duggan
Sun Jul 25, 2010 1:44 pm
Forum: Open Discussion
Topic: SD 2010 - Seoul Korea
Replies: 6
Views: 5086

Re: SD 2010 - Seoul Korea

Hi Bob,

Thanks for the post... it would be great if you (and maybe others!) could post short highlights as the conference progresses.

Enjoy the conference...!

best regards,
Jim.