These tutorials
demonstrate how to use STELLA and iThink to construct a simple model
of a population constrained by natural resources. For hands-on experience
building this model and additional tutorial instruction, open the models
found in the Tutorials directory of your STELLA or iThink installation.
PDF Diagram of Model Used in Tutorials
Tutorial 1: Building Blocks
Learn the basic mechanics of creating a Stock and Flow diagram and assigning values to model entities.
Tutorial 2: Running the Simulation
See how to set the parameters for running a model with Run Specs and to create Graphs and Tables for viewing the
results.
Tutorial 3: Adding Feedback
Learn how
to create Converters, link model entities with Connectors,
and display the cause and effect relationship between model elements by
assigning Polarity to their connection.
Tutorial 4: Organizing and Testing
See how Sensitivity Analysis can be used to test the effect of
changing the value of a model variable. Become familiar with Sector
Frames and how they are used to organize and test parts of a model.
Tutorial 5: Working with Modules
Learn how
to create hierarchical models that use Modules to piece
together common structure.
Tutorial 6: Importing and Exporting Data
Learn the basic mechanics involved in importing data from and exporting data to Microsoft Excel.
