The Home Heating System can be used to demonstrate how we get caught in dilemmas and become victims of ourselves.

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

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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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.

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 model introduces the S/O and +/- notation for depicting the relations that might exist between two elements along with why the +/- notation is preferred.

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

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

Drifting Goals Stock & Flow Simulation model.

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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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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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How Systems Thinking World came to be where it is and where it's seems to be heading at present.

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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.

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.

The meaningful relationship between a business and its customers should be a reinforcing structure.

The city of Bergen has a goal of becoming fossil-free in 2030. How do we get there? Some weeks ago, local experts from different domains came together and developed a causal loop diagram (CLD). This will form the skeleton for the modelling hackathon.

Faced with a performance gap the two most obvious responses are to work harder or work smarter. There are trade offs associated with each, some obvious, some not so obvious.

Derived from Nobody Ever Gets Credit for Fixing Problems that Never Happened: Creating and Sustaining Process Improvement by Repenning and Sterman.

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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.

A model demonstrating the various options that are available for the Link primitive.

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.

At this stage it is essential to understand and admit that the task at hand completely overwhelms the current methods. The way forward lies in realizing the essential nature of collaboration and the need for an integrated tool set to support collaboration. Even with that as the realization, current understanding indicates that the integrated tool set necessary to support the needed collaboration simply does not exist. And, not only does it not exist, it is most likely beyond the resources of any one vendor to provide it if they wished. So what are the options?

Use a savings account 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 growth producing reinforcing loop.

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