Part 1 demonstrates Picture primitives and Links to create representations of interactions. These are made visually attractive because the Picture primitives are overlayed with images.
The simple savings account is used to demonstrate the nature of a reinforcing loop. Change the initial amount and interest rate and run the model to see the implications of changing these values.
Creating a Pulse function that has a size and duration based on an outbreak. The assumption is that there can't be an outbreak if there is an outbreak.
Out of Control is one of the four generic archetypes developed by Eric Wolstenholme and maps to the Fixes that Fail, Accidental Adversaries, Shifting the Burden and Addiction Systems Archetypes.
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model to investigate the implications associated with intending to save money for retirement so an amount may be withdrawn monthly for living expenses.
Underachievement is one of the four generic archetypes developed by Eric Wolstenholme and maps to the Limits to Growth, Tragedy of the Commons, Attractiveness Principle, Growth and Underinvestment and Growth and Underinvestment with a Drifting Standard Systems Archetypes.
Initial causal loop diagram for the influences leading to the acceptance of Systems Thinking. This is the evolving version. You can compare this with IM-1948, which is the original, if you wish.
Once I get the formulas and get this working unfold the story and exercise the 2 stock model and then surface the other two stocks and exercise the mode then.
Add variables so I can use sliders to control the multipliers in the flows and the initial values of the stocks.
Inventory Model v2.0 adds production and order lead time. As well as the ability to keep track if parts are on order for a production run. See also: Inventory Model v3.0.
When we address situations we tend to do so with myopic limited awareness of the real nature of the situation and our actions tend to produce unintended consequences which make the situation worse or create other problems that have to be dealt with by us or others.
The Accidental Adversaries structure represents a situation where two interacting entities which should produce growth unwittingly limit the growth of each other because of their actions to promote their own growth. See also Archetypes.
