Search found 37 matches

by Richard Stevenson <rstevenson
Sun Jul 20, 2008 1:20 am
Forum: SD Mailing List Archive
Topic: QUERY Society Strategy Development
Replies: 127
Views: 129382

QUERY Society Strategy Development

Posted by Richard Stevenson <rstevenson@valculus.com> Jay Forrester writes: > I have recently had occasion to reread my presidential address at the 1983 > System > Dynamics conference, available at: > http://www.systemdynamics.org/publications.htm I reread it too. Forrester's address paper is as per...
by Richard Stevenson <rstevenson
Sat Jul 19, 2008 12:28 pm
Forum: SD Mailing List Archive
Topic: QUERY Society Strategy Development
Replies: 127
Views: 129382

QUERY Society Strategy Development

Posted by Richard Stevenson <rstevenson@valculus.com> David Corben's contribution is interesting. The antagonism to LTG is still palpable and SD has certainly suffered for decades because of the controversy. The old parable about the guy who jumps off a skyscraper and yells ""so far so goo...
by Richard Stevenson <rstevenson
Fri Jul 18, 2008 1:46 pm
Forum: SD Mailing List Archive
Topic: QUERY Society Strategy Development
Replies: 127
Views: 129382

QUERY Society Strategy Development

Posted by Richard Stevenson <rstevenson@valculus.com> One last windmill tilt before I retire for the summer - and you guys all convene in Athens. Bill Braun says: > ""the debate has become so personal that some voices have painted > themselves into a corner of pride and principle that will...
by Richard Stevenson <rstevenson
Thu Jul 17, 2008 7:13 am
Forum: SD Mailing List Archive
Topic: QUERY Society Strategy Development
Replies: 127
Views: 129382

QUERY Society Strategy Development

Posted by Richard Stevenson <rstevenson@valculus.com> I have - fairly - been accused of negativity about the SDS and challenged to suggest a more positive route for development of our field. I have thoughts of my own but many of them are well summarised by two weblinks. First, some principles. Here ...
by Richard Stevenson <rstevenson
Wed Jul 16, 2008 6:42 am
Forum: SD Mailing List Archive
Topic: QUERY Society Strategy Development
Replies: 127
Views: 129382

QUERY Society Strategy Development

Posted by Richard Stevenson <rstevenson@valculus.com> Bill Braun writes > I find the points you make, though strident, to have some value. That > said, > if you cannot, or will not, speak your mind without belittling and > denigrating people that I believe are doing the best they can, you can > kiss...
by Richard Stevenson <rstevenson
Mon Jul 14, 2008 6:54 am
Forum: SD Mailing List Archive
Topic: QUERY Society Strategy Development
Replies: 127
Views: 129382

QUERY Society Strategy Development

Posted by Richard Stevenson <rstevenson@valculus.com> I totally agree with Kim Warren on the contribution of academics to SD. I don't think anybody has ever questioned the huge intellectual contributions that derive from university-based people - after all, they are actually paid to think and then t...
by Richard Stevenson <rstevenson
Sat Jul 12, 2008 7:13 am
Forum: SD Mailing List Archive
Topic: QUERY European 'Global System Dynamics Project'
Replies: 13
Views: 11340

QUERY European 'Global System Dynamics Project'

Posted by Richard Stevenson <rstevenson@valculus.com> On 11 Jul 2008, at 19:30, Jack Harich wrote: > Do you have a hypothesis for why this is so? Is it SD or the SDS that is > invisible? Jack. The European project illustrates exactly my point. We (SD) should be represented on this project. But we - ...
by Richard Stevenson <rstevenson
Mon Jun 30, 2008 6:50 am
Forum: SD Mailing List Archive
Topic: QUERY Society Strategy Development
Replies: 127
Views: 129382

QUERY Society Strategy Development

Posted by Richard Stevenson <rstevenson@valculus.com> I know this won't get published, Bob. Because you won't pass it. I have read the recent correspondence on strategy development with a very limited degree of interest. This thread was instigated over six months ago and initially received very litt...
by Richard Stevenson <rstevenson
Sat Apr 26, 2008 6:32 am
Forum: SD Mailing List Archive
Topic: QUERY Society Strategy Development
Replies: 127
Views: 129382

QUERY Society Strategy Development

Posted by Richard Stevenson <rstevenson@valculus.com> Bill Harris writes: > Do you see practical, not just philosophical, gaps in > the engineering model that make it worth the cost of implementing the > heavier-weight medical, legal, or accounting model? I have no problems with the engineering deve...
by Richard Stevenson <rstevenson
Thu Apr 24, 2008 7:35 am
Forum: SD Mailing List Archive
Topic: QUERY Society Strategy Development
Replies: 127
Views: 129382

QUERY Society Strategy Development

Posted by Richard Stevenson <rstevenson@valculus.com> Along with many others, no doubt, I broadly welcome the creation of a ""task force"" to examine the future of system dynamics. But I sincerely question that it is possible to develop a global ""vision and strategy&qu...
by Richard Stevenson <rstevenson
Fri Mar 07, 2008 6:53 am
Forum: SD Mailing List Archive
Topic: QUERY Open Source Simulation Software for SD
Replies: 22
Views: 22227

QUERY Open Source Simulation Software for SD

Posted by Richard Stevenson <rstevenson@valculus.com> Stefano Armenia wrote: > I believe that the > unavailability of a free software for SD might also be a reason for the > scarce submission of models or for the submission of poorly documented > models to the ISDC. I could not disagree more. First,...
by Richard Stevenson <rstevenson
Fri Dec 07, 2007 7:52 am
Forum: SD Mailing List Archive
Topic: QUERY Income based membership dues
Replies: 9
Views: 11751

QUERY Income based membership dues

Posted by Richard Stevenson <rstevenson@valculus.com> I have just received my SDS membership renewal advice. I really cannot think of any more potent way to destroy the SDS than an ""Income-based"" subscription. I can see that this might be attractive to a student, in India for e...
by Richard Stevenson <rstevenson
Tue Nov 13, 2007 8:39 am
Forum: SD Mailing List Archive
Topic: QUERY Ensuring Quality of Models
Replies: 13
Views: 15104

QUERY Ensuring Quality of Models

Posted by Richard Stevenson <rstevenson@valculus.com> Tom Fiddaman wrote: >I'd call this influence, not validity. A completely spurious model could be >involved in a process that changed things a lot. Influence and validity are >separate, individually necessary but not sufficient, conditions for a s...
by Richard Stevenson <rstevenson
Sat Nov 10, 2007 7:25 am
Forum: SD Mailing List Archive
Topic: QUERY Ensuring Quality of Models
Replies: 13
Views: 15104

QUERY Ensuring Quality of Models

Posted by Richard Stevenson <rstevenson@valculus.com> Some good points, Richard. There are of course, many approaches to technical model validation. In fact, it's almost a subject in its own right. My own (maverick, possibly) view, is that models are only valid if they actually change behaviours. Fo...
by Richard Stevenson <rstevenson
Sun Nov 04, 2007 7:35 am
Forum: SD Mailing List Archive
Topic: ANNOUNCE "System dynamics inside" - a White Paper
Replies: 1
Views: 5210

ANNOUNCE ""System dynamics inside"" - a White Paper

Posted by Richard Stevenson <rstevenson@valculus.com> A couple of people have objected to the word ""new"" in the title of the white paper. I am quite happy to retract it. New downloaders will find that the title is simply "" a 21st century planning architecture"&q...
by Richard Stevenson <rstevenson
Sat Nov 03, 2007 6:36 am
Forum: SD Mailing List Archive
Topic: ANNOUNCE "System dynamics inside" - a White Paper
Replies: 1
Views: 5210

ANNOUNCE ""System dynamics inside"" - a White Paper

Posted by Richard Stevenson <rstevenson@valculus.com> A few weeks ago I circulated some draft ideas of how SD might be integrated into a more generalised proposition that would be of widespread value to the business community. I received a number of constructive responses from members of the listser...
by Richard Stevenson <rstevenson
Tue Oct 16, 2007 7:21 am
Forum: SD Mailing List Archive
Topic: QUERY "System Dynamics Inside" - articulating busines
Replies: 1
Views: 3211

QUERY ""System Dynamics Inside"" - articulating busines

Posted by Richard Stevenson <rstevenson@valculus.com> There are significant new pressures on companies - and finance officers in particular - to articulate and communicate their business models more clearly. See this short recent article. http://www.telegraph.co.uk/money/main.jhtml?xml=/money/exclus...
by Richard Stevenson <rstevenson
Tue Oct 16, 2007 7:21 am
Forum: SD Mailing List Archive
Topic: QUERY "System Dynamics Inside" - articulating busines
Replies: 1
Views: 3211

QUERY ""System Dynamics Inside"" - articulating busines

Posted by Richard Stevenson <rstevenson@valculus.com> There are significant new pressures on companies - and finance officers in particular - to articulate and communicate their business models more clearly. See this short recent article. http://www.telegraph.co.uk/money/main.jhtml?xml=/money/exclus...
by Richard Stevenson <rstevenson
Thu Sep 27, 2007 12:14 pm
Forum: SD Mailing List Archive
Topic: QUERY Valuation of intangible assets
Replies: 5
Views: 5417

QUERY Valuation of intangible assets

Posted by Richard Stevenson <rstevenson@valculus.com> I have raised the issue of SD in corporate finance before on this forum. I am moved to do so again because things are now really starting to motor in the world of ""valuation"" and I think SD has a significant role to play. Pu...
by Richard Stevenson <rstevenson
Thu Sep 20, 2007 12:44 pm
Forum: SD Mailing List Archive
Topic: QUERY "Flawless Consulting" and SD
Replies: 17
Views: 12223

QUERY ""Flawless Consulting"" and SD

Posted by Richard Stevenson <rstevenson@valculus.com> One more thought, to clarify my comments on data. I was, indeed being somewhat contentious - but largely to make an important point. My particular business and interest is concerned with strategy modelling - not with detailed operational modellin...
by Richard Stevenson <rstevenson
Wed Sep 19, 2007 2:06 pm
Forum: SD Mailing List Archive
Topic: QUERY "Flawless Consulting" and SD
Replies: 17
Views: 12223

QUERY ""Flawless Consulting"" and SD

Posted by Richard Stevenson <rstevenson@valculus.com> My last note clearly didn't come out right! Thanks, Kim. My intention was to convey the reality that often the SD practitioner needs to simplify and/or massage what the client sees as ""real data"", in order to generate a usef...
by Richard Stevenson <rstevenson
Tue Sep 18, 2007 2:19 pm
Forum: SD Mailing List Archive
Topic: QUERY "Flawless Consulting" and SD
Replies: 17
Views: 12223

QUERY ""Flawless Consulting"" and SD

Posted by Richard Stevenson <rstevenson@valculus.com> On 17 Sep 2007, at 11:01, SDMAIL Kim Warren wrote: > My take on this is that SD provides a rigorous up-front architecture > for how things actually work, so that data collection seeks the > appropriate information. Data! Now that's the most conte...
by Richard Stevenson <rstevenson
Thu Sep 06, 2007 3:19 pm
Forum: SD Mailing List Archive
Topic: QUERY How to promote good work
Replies: 26
Views: 22043

QUERY How to promote good work

Posted by Richard Stevenson <rstevenson@valculus.com> Kim Warren wrote: > Whatever one thinks of how well the 'establishment' serves this > community, we should recall that virtually all that commitment is > voluntary and done for the love of it - a point I know Richard himself > has made before. Ab...
by Richard Stevenson <rstevenson
Tue Sep 04, 2007 2:36 pm
Forum: SD Mailing List Archive
Topic: QUERY Forming a System Dynamics Institute
Replies: 5
Views: 4960

QUERY Forming a System Dynamics Institute (SD6556)

Posted by Richard Stevenson <rstevenson@valculus.com> I applaud Kim Warren's suggestions. Particularly valuable coming from an acknowledged thought leader in our field and in the SDS. I think that was necessary. Kim said: > I don't know much about exactly how such institutes function, or what > woul...
by Richard Stevenson <rstevenson
Tue Sep 04, 2007 2:25 pm
Forum: SD Mailing List Archive
Topic: QUERY How to promote good work
Replies: 26
Views: 22043

QUERY How to promote good work (SD6555)

Posted by Richard Stevenson <rstevenson@valculus.com> Bob Eberlein wrote: > Jay was troubled by the lack of thoughful responses by experienced > people, and so am I. Mr. Stevenson has not put forward any proposal > about what should be done, but simply leveled criticism at what is > being done. With...