Search found 3 matches

by Jim Thompson
Thu Dec 14, 2006 4:40 pm
Forum: SD Mailing List Archive
Topic: QUERY SD Impact on National Government Policies
Replies: 66
Views: 61222

QUERY SD Impact on National Government Policies

Posted by Jim Thompson <james.thompson@strath.ac.uk> Louis Macovsky wrote ""I am curious to know to what extent has SD played, if any, in decision making and management at the Federal level other than in the military."" That is a difficult question to answer without a thorough su...
by Jim Thompson
Tue Nov 02, 2004 3:21 pm
Forum: SD Mailing List Archive
Topic: The Derivative in the Real World
Replies: 9
Views: 18641

The Derivative in the Real World

I take Weaver to be saying that a derivative is part of a mental model and that a mountain slope is an observable manifestation of a meaning-making concept called derivative. I take Fiddaman to be saying that the usefulness of that mental construction is limited until we make some other observations...
by Jim Thompson
Wed Sep 29, 2004 2:03 am
Forum: SD Mailing List Archive
Topic: Naming systems models by end use
Replies: 1
Views: 3128

Naming systems models by end use

In ""Prediction and prescription in systems modelling"" (Operations Research, 38:1 (January-February 1990), pp. 7-14), Herbert A. Simon wrote: ""When we model systems, we are usually (not always) interested in their dynamic behaviour. Typically, we place our model at so...