Demo of changing vector length on the fly.

This is my first attempt at creating a simple Agent Based Simulation Model. Nothing fancy, just something that works.

The delays associated with adjusting the shower is a very common example of the Balancing Loop with Delay Systems Archetype. 

These are case studies which have been undertaken via the virtual systemic inquiry process.

Inventory Model v4.0 calculates min days inv & max days inv and makes adjustments for desired service level. See also: Inventory Model v3.0.

We often set out to solve a problem or accomplish some particular result and things seem to go as planned. As time progresses it seems that progress becomes more and more difficult, if not impossible, and things may actually become worse than when we started. When this happens it is typically a Fixes that Fail structure that's operating. See also Archetypes.

Video

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A spatially aware, agent based model of disease spread. There are three classes of people: susceptible (healthy), infected (sick and infectious), and recovered (healthy and temporarily immune).

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The Model being used as part of the Collaborative Model Development project at Systems Thinking World.

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A spatially aware, agent based model of disease spread. There are three classes of people: susceptible (healthy), infected (sick and infectious), and recovered (healthy and temporarily immune).

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A Tragedy of the Commons situation exists whenever two or more activities, each, which in order to produce results, rely on a shared limited resource. Results for these activities continue to develop as long as their use of the limited resource doesn't exceed the resource limit. Once this limit is reached the results produced by each activity are limited to the level at which the resource is replenished. See also Archetypes.

Example of using Pulse function to create a recurring delay.

The limits to growth structure is based on the basic growth structure. And, as should be obvious, nothing grows forever as growth requires resources. Those required resources become a limits to growth. See also Archetypes.

Because everything is connected you can't do just one thing. And while everything is connected everything isn't relevant.

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

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

An Addiction structure is the same as the Shifting the Burden structure though with the annoying aspect that one becomes addicted to the side effect ensuring that Fundamental Solution won't get implemented and the Symptomatic Solution will be applied repeatedly, and likely with greater frequency. See also Archetypes.

We begin with a Bank with $0 and Borrowers with $100. Every year the Bank loans the Borrowers money at some interest rate. If the Bank loans $50 at 10% interest in 20 years the bank will have all the money and the Borrowers will be broke.

The typical problem solving cycle.

Example of using Pulse function to create a recurring delay.

Adding images to a model typically assists in conveying meaning.

Some people have found it easier to communicate interactions and their implications with Connection Circles rather than Causal Loop Diagrams.

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What do activities of these images have in common?

All the following have a common characteristic.

Simple savings account.