Page 1 of 1

Systems modeling, puzzles and Taxonomy

Posted: Wed Apr 10, 2002 1:41 pm
by "Beck, Peter [AMSTA-AR-FSF-X]" <
Systems modeling & puzzles

In the world of mechanical puzzles (these are whole systems) there is a
taxonomy of modalities (for background see "Puzzle Categories" @
http://johnrausch.com/PuzzleWorld/cat/category.htm ).

My question to the list is do system/SD models have this type of diversity
or do they all fall into one class, e.g., Sequential movement - puzzle
pieces are connected in some way and rearrangement of the pieces requires
moving groups of pieces in some sequence.

Puzzles of course often take advantage of some uniqueness which once known
may make the puzzle simple. Can this be modeled?

Pete Beck
From: "Beck, Peter [AMSTA-AR-FSF-X]" <peter.beck@us.army.mil>

Systems modeling, puzzles and Taxonomy

Posted: Thu Apr 11, 2002 10:04 am
by George Richardson
On Wednesday, April 10, 2002, at 01:41 PM, Beck, Peter [AMSTA-AR-FSF-X]
wrote:

> My question to the list is do system/SD models have this type of diversity
> or do they all fall into one class, [...]

Well, first and foremost, theyre all about dynamics, so I guess thats
one class of system.

But there are a variety of ways of classifying system dynamics models
(studies), using concepts like equilibrium-seeking (inventory oscillations)
, growth-seeking (corporate growth), steady state (predator-prey
oscillations), transient (project dynamics, World Dynamics), and so on. I
find the distinction (loosely stated) between steady-state and transient
systems moderately useful for my students.

> Puzzles of course often take advantage of some uniqueness which once known
> may make the puzzle simple. Can this be modeled?

I dont think system dynamics applies very well in the world of such
puzzles. Wed need some dynamics -- whats changing over time, and
how? -- and I dont see what those are in the world of take-
apart/put-together puzzles.

*George P. Richardson
*Rockefeller College of Public Affairs and Policy
*University at Albany - SUNY, Albany, NY 12222
*gpr@albany.edu *http://www.albany.edu/~gpr