Adapted from Hartmut Bossel's "System Zoo 3 Simulation Models, Economy, Society, Development."

​Population model where the population is summarized in four age groups (children, parents, older people, old people). Used as a base population model for dealing with issues such as employment, care for the elderly, pensions dynamics, etc.

System Zoo Z104: Exponential delay from System Zoo 1 by Hartmut Bossel

System Zoo Z105: Time-dependent growth from System Zoo 1 by Hartmut Bossel

System Zoo Z107: Infection dynamics from System Zoo 1 by Hartmut Bossel

Replicate a Z501 Supply chain model in InsightMaker, Replication 1 from Bossel, System Zoo 3. 

Variables are indicated in Italics, small capitals are used dor parameters, state variables shown as boxs, united os measurement are shown in [square bracket]. 

This models the progressive decline of the ability for self-reliance and the growing dependence on outside help. ​Z508 p39-42 System Zoo 3 by Hartmut Bossel. Strong outside help causes a collapse of self-help capacity. Weak outside help produces a stable combination of wellbeing and self-help capacity.

System Zoo Z108: Overloading a buffer from System Zoo 1 by Hartmut Bossel

System Zoo Z111: Density-dependent growth (Michaelis-Menten) from System Zoo 1 by Hartmut Bossel

System Zoo Z107 exercise 2: Infection dynamics, exercise 2 (a part of the population is immune to infection) from System Zoo 1 by Hartmut Bossel

This is my attempt at the problem, not necessarily correct!

Z206 from Hartmut Bossel System Zoo 1 p99-102 See also a beautiful Youtube 3D Video Simulation

System Zoo Z107 exercise 2: Infection dynamics, exercise 2 (a part of the population is immune to infection) from System Zoo 1 by Hartmut Bossel

This is my attempt at the problem, not necessarily correct!

System Zoo Z418 - Sustainable Use of a renewable resource from Hartmut Bossel (2007) System Zoo 2 Simulation Models. Climate, Ecosystems, Resources

​System Zoo Z412 Tourism Dynamics from Hartmut Bossel (2007) System Zoo 2 Simulation Models. Climate, Ecosystems, Resources

Bipolar II treatment modeling using Van der Pol-like oscillators.

In this simulation an afflicted individual with Bipolar II disorder is put to treatment after 20 months the calibration of the medicine or treatment he recieves is such that it simulates the natural cycles of a "normal being". You can note by manipulating the parameters that sometimes too much treatment disrupts equilibria. Also note that in the state diagrams there are 2 limit cycles, the lower one being the healthiest as there are less changes.

Based on System Zoo EZ411 Tourist.mdl Vensim model. Caroline Brennan 21/02/2018.

System Zoo Z106: Simple population dynamics from System Zoo 1 by Hartmut Bossel

Z203 from System Zoo 1 p88-90

Rotating Pendulum Z201 from System Zoo 1 p80-83

https://pt.wikipedia.org/wiki/P%C3%AAndulo / https://en.wikipedia.org/wiki/Pendulum

https://pt.wikipedia.org/wiki/Equa%C3%A7%C3%A3o_do_p%C3%AAndulo https://en.wikipedia.org/wiki/Pendulum_(mechanics)

Often a single prey population is the source of food for several  competing predators (e.g. mice as prey of foxes and birds of prey)​. Here again a reliable intuitive assessment of long-term development resulting from the particular system relationship is impossible. A simulation model can assist in recognizing development trends inherent in the system structure even if in reality a variety of other factors determine the development and may cause it to proceed on a somewhat different path.

Exploring the conditions of permanent coexistence, rather than gradual disappearance of disadvantaged competitors. ​Z506 p32-35 System Zoo 3 by Hartmut Bossel.

Insight Maker model based on the Z415 System Zoo model originally developed in Vensim.

Often a single prey population is the source of food for several  competing predators (e.g. mice as prey of foxes and birds of prey)​. Here again a reliable intuitive assessment of long-term development resulting from the particular system relationship is impossible. A simulation model can assist in recognizing development trends inherent in the system structure even if in reality a variety of other factors determine the development and may cause it to proceed on a somewhat different path.

A simple model revolving around the inventory of a car dealership. It illustrates the feedback mechanism used to maintain an adequate amount of stock (cars) to satisfy customer demand, and includes the perception, delivery and response delays.