Search found 6 matches

by George Richardson gpr albany.edu
Mon Mar 13, 2006 12:07 pm
Forum: SD Mailing List Archive
Topic: Explaining Validation
Replies: 11
Views: 8346

Explaining Validation

Posted by George Richardson <gpr@albany.edu> I'm a little late seeing these posts, but if it helps anyone, there's a PowerPoint presentation among my papers on line http:// www.albany.edu/~gpr/Papers.html containing the slides from a talk on Validation as an Integrated Social Process. The slides are...
by George Richardson gpr albany.edu
Mon Oct 24, 2005 3:08 pm
Forum: SD Mailing List Archive
Topic: Loop Dominance in CLDs
Replies: 2
Views: 3802

Loop Dominance in CLDs

Posted by George Richardson <gpr@albany.edu> On Oct 22, 2005, at 7:09 AM, Louis Macovsky dynbiosys verizon.net wrote: >> How do you in your practice of causal loop diagramming with clients >> convey the concept that i.e. Loop Y is not activated until some >> threshhold is reached in Loop X? Without ...
by George Richardson gpr albany.edu
Fri Oct 21, 2005 11:32 am
Forum: SD Mailing List Archive
Topic: MIN/MAX Functions
Replies: 8
Views: 11879

MIN/MAX Functions

Posted by George Richardson <gpr@albany.edu> On Oct 19, 2005, at 6:18 AM, geoff coyle geoff.coyle btinternet.com wrote: >> It should be (using my variable names) >> >> rate_of_winning_customers=MIN >> (normal_rate_of_winning_customers,potential_customers/dt) >> normal_rate_of_winning_customers=5 >> ...
by George Richardson gpr albany.edu
Tue Sep 20, 2005 11:51 am
Forum: SD Mailing List Archive
Topic: Order of a system
Replies: 6
Views: 5439

Order of a system

Posted by George Richardson <gpr@albany.edu> On Sep 19, 2005, at 6:14 AM, geoff coyle geoff.coyle btinternet.com wrote: >> Bill's first paragraph is correct. The order of a model is the number >> of stocks it contains. Not quite. Should be ""...the number of *independent* stocks it contain...
by George Richardson gpr albany.edu
Sun Sep 18, 2005 1:02 pm
Forum: SD Mailing List Archive
Topic: All models are wrong (was Strategy magazine article about Ja
Replies: 16
Views: 11356

All models are wrong (was Strategy magazine article about Ja

Posted by George Richardson <gpr@albany.edu> I tend never to say ""all models are wrong."" My problems with the statement are that the people I'm speaking with don't usually have the same meanings and attributions to the word ""model"" that I have, or that Joh...
by George Richardson gpr albany.edu
Wed Jan 19, 2005 11:26 am
Forum: SD Mailing List Archive
Topic: Models and Science
Replies: 20
Views: 36838

Models and Science

Posted by George Richardson <gpr@albany.edu> >> Posted by <heffron@hialoha.net> >> First of all, labeling people ""environmentalists"" or ""non-environmentalists"" >> (i.e., implied: ""realists"") is -if not unnecessary- just plain dumb. Re...