This is a sample model to demonstrate the Insight Maker Optimization function.

When the relevant interactions are identified it's appropriate to identify which elements are the responsibility of which stakeholders, which elements are part of the addressable interactions and which elements are part of the environment.

This Savings Model is the third in the series. It illustrates the difference in savings over time for a doctor or for a skilled worker who went to a trade school.

• Traditional Career Model
• Loan Cost Model

Model in support of an article being written about Investment vs Austerity.

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Use a bathtub model to investigate the manner in which inflows and outflows govern the quantity of a stock. Extend the structure to create and investigate the relationships of a goal seeking balancing loop.

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When we're trying to understand a situation it is often very helpful to have a sense of the historical trends of several dimensions relevant to the situation.

All the insights you create will be with components from the Add Primitive menu and they will be connected together with Flows/Transitions or Links.

Examples of reinforcing and balancing loops enhanced with images to maybe them more visually engaging.

From Jay Forrester 1971 book World Dynamics, the earlier, simpler version of the World 3 Limits to Growth Model. Adapted by Geoff McDonnell from Mark Heffernan's ithink version at Systemswiki.org.

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Drifting Goals archetype for pressure to lower standards impacting efforts to reduce pollution and improve current air quality.

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This model is an element of the effective problem solving program.

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This model represents an elaboration of the Savings Account model to investigate the implications associated with intending to save money for retirement so an amount may be withdrawn monthly for living expenses.

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Because our problem solving approaches in today's reality don't produce very good solutions we end up continually dealing with unintended consequences which make the original problem worse or create new problems to be dealt with.

The situation Big Box Distribution considers to be a problem is an average accounts receivable period which is considered unacceptable as it is costing them money.

A balancing loop depiction of employing a diet to reduce the gap between a desired weight and current weight.

Purpose: Employ the Mono Lake model adapted from "Modeling the Environment" by Andrew Ford as a basis for developing a set of guidelines to support asynchronous multi-user model development.

Mono Lake is an ancient inland sea on the eastern side of the Sierra Nevada. From a policy point of view Mono Lake is the story of how a handful of people began a campaign to save a dying lake

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Often times there are a number of parameters in a model you want to set to specific values and run the model to demonstrate a particular behavior. When there are several variables involved remembering the setup is often difficult and takes time. And can you demonstrate the behavior when you're not there? Developing scenarios with Button scripts is a quick way to overcome these difficulties.

The approach is to investigate the US Economy from a macro perspective, then the Public Sector in more detail and then expand out to the World Economy.

This is an example of how to use Folders to enfold insights so others can unfold them later and develop an understanding of the relationships.

Mouse over elements for additional information.

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Drifting Goals Stock & Flow Simulation model.

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Demo of population growth with distinct agents.

Based on 1990 SDR Article. Control systems act to make their own input match internal standards or reference signals. Competent control systems create illusions of stimulus response causality. Stimulus-response theory can approximate the relationship between disturbance and action, but it can't predict the consequences of behavior. These consequences are maintained despite disturbances. See also Double loop learning and Nurse Thinking Insights.

The issue of increasing private and government debt to banks is a major concern after the financial crisis of 2008 (see Figure at link given below). In order to understand why our society and government is increasingly indebted to banks we need to understand how our current money system works and why we need a continuous infusion of new money in a growing economy. “Why We Are Increasingly Indebted To Banks?” investigates the reasons behind this and suggest a possible solution.

We are embedded in a larger system and unless we realize it an act accordingly we are likely to be the victim of it. From Introduction to System Dynamics: Overview by John Sterman