Search found 9 matches

by Bruce Campbell
Fri Apr 28, 2000 10:25 am
Forum: SD Mailing List Archive
Topic: Request for system boundary setting guidance
Replies: 3
Views: 8321

Request for system boundary setting guidance

There are a number of classic texts in this area. However, the book of choice at the moment seems to be: Sterman, John, 2000, Business Dynamics: Systems Thinking and Modeling for a Complex World. McGraw Hill. I havent seen the book (the exchange rate in Australia makes it horrendously expensive) but...
by Bruce Campbell
Sun Apr 23, 2000 12:20 pm
Forum: SD Mailing List Archive
Topic: SD in IS Development - Transforming DFDs to SD models
Replies: 0
Views: 2228

SD in IS Development - Transforming DFDs to SD models

A number of people replied to me personally re my previous posting. Rather than reply to everyone separately I will place both my MSc(Hons) thesis, and a list of references on the JRCASE web page. This may take a couple of days. I will advise those people who replied individually when the site is re...
by Bruce Campbell
Tue Apr 18, 2000 10:53 am
Forum: SD Mailing List Archive
Topic: System Dynamics in IS
Replies: 1
Views: 2619

System Dynamics in IS

Morfydd, I have been using SD in IS. In fact, my MSc(Hons) thesis was on this topic - the use of SD as business process modelling method but with an IS viewpoint. Generally, very few people use SD during IS development. What I have found is that SD modelling allows stakeholders (including the IS dev...
by Bruce Campbell
Fri Apr 14, 2000 10:23 am
Forum: SD Mailing List Archive
Topic: Quantifying soft data
Replies: 16
Views: 15144

Quantifying soft data

Sala, In my limited experience, the best way to go about this is to involve key stakeholders in the modelling process. This is sometimes very difficult - they usually try to find reasons why they dont need to be there. Emphasise to participants that what they are trying to achieve is an understandin...
by Bruce Campbell
Fri Apr 30, 1999 11:21 am
Forum: SD Mailing List Archive
Topic: System Dynamics Societys Priorities
Replies: 21
Views: 12943

System Dynamics Societys Priorities

Jodi-Anne Smith wrote: > Can i suggest an annual scholarship for work experience / study in system dynamics? I would like to support this idea, plus the encouragement of mentoring. Like Jodi, Im also removed from SD practitioners/experts and have felt a sense of isolation during my studies. At one s...
by Bruce Campbell
Sat Apr 17, 1999 10:34 am
Forum: SD Mailing List Archive
Topic: Discrete Event Simulation v. System Dynamics
Replies: 13
Views: 10487

Discrete Event Simulation v. System Dynamics

Aitor, One place to check out is http://www.imaginethatinc.com/ This does not compare SD with discrete event specifically, but gives a good overview of continuous (eg SD) modelling vs discrete event modelling and some of the strengths and weaknesses of both. As far as Im aware no-one has compared SD...
by Bruce Campbell
Fri Apr 16, 1999 10:28 am
Forum: SD Mailing List Archive
Topic: Resource allocation models
Replies: 28
Views: 40391

Resource allocation models

kevin.a.agatstein@us.arthurandersen.com wrote: > One warning about this type of approach though. You need to be certain that > your capacity allocation is not over allocated. Depending on how you > conceptualize the problem, you may go above 100% to account for overtime. If > your assumption of a pe...
by Bruce Campbell
Fri Apr 16, 1999 10:14 am
Forum: SD Mailing List Archive
Topic: Modeling Fatigue
Replies: 4
Views: 13361

Modeling Fatigue

Kevin, The iThink program and manuals have an example model of "burnout" which answers your question. Essentially, the extra hours each week contribute to a Burnout stock. The longer the period of excess hours, the greater this stock. The value of this stock is then used to calculate the l...
by Bruce Campbell
Fri Apr 02, 1999 9:49 am
Forum: SD Mailing List Archive
Topic: Is SD better than DES for Manufacturing Simulation
Replies: 4
Views: 4139

Is SD better than DES for Manufacturing Simulation

Check out http://www.imaginethatinc.com/ for an easily understood comparison, and differences, between DES and SD. They are used for different types of problems. There was also a discussion on this list some time ago about the differences between SD and DES. Let me know if you cant get hold of the d...