The interaction of a population of Moose and Wolves.

Introduce the concept of modeling and simulation.

Simplest Innovation diffusion model from Sterman's Business Dynamics Ch 9

Consider the following "Sustaining the Forest" model intended to provide another example of how unexpected the behavior of a web of extended interactions can be.

Introduce the concept of modeling and simulation.

When endeavoring to develop an understanding of the nature of something it is generally useful to create a model of some type to aid in surfacing that understanding.

All the following have a common characteristic.

All the following have a common characteristic.

Consider the following "Sustaining the Forest" model intended to provide another example of how unexpected the behavior of a web of extended interactions can be.

Consider the following "Sustaining the Forest" model intended to provide another example of how unexpected the behavior of a web of extended interactions can be.

All you wanted to do was put a bird feeder in your yard to attract birds and make for a more pleasant morning. And...

This Romeo and Juliet Model was adapted by Geoff McDonnell from Michael J Radzicki (1993) Dyadic processes, tempestuous relationships, and system dynamics, System Dynamic Rev. 9 (1) :79-94

The purpose of this model is to have the user change the value of stocks, flows and converters to experience a variety of different graphical results. Understanding this generic model is important pre-requisite to learning about intravenous drugs in the body, radioactivity, self-esteem, water flowing from a drain and many other basic natural systems.

All you wanted to do was put a bird feeder in your yard to attract birds and make for a more pleasant morning. And...

There's actually more to filling a swimming pool with water than you might realize.

All the following have a common characteristic.

Consider the following "Sustaining the Forest" model intended to provide another example of how unexpected the behavior of a web of extended interactions can be.

While these pictures represent very different things there is a common essence.

The interaction of a population of Moose and Wolves.

What do activities of these images have in common?

There are three types of models most commonly used.