Working with Modules

Modules are self-contained models that you can connect to other models. Modules allow you to break a single model into well-defined "chunks". Each module within a model is a cohesive model on its own, which you can run separately or within the larger model.

By using modules, you can:

Build small, self-contained portions of a model, one at a time.
Test a single portion of a large model.
Represent a hierarchical system in a model, by making each level of the hierarchy into a separate module, with each module linked to one or more levels above it.
Work with teams to build a complex model by having each team member build separate modules that are later linked together.
Reuse portions of a model in as many models as you want.
Create very large models (models that may have previously exceeded size limits).
Incorporate locked models into other models.

You can create as many modules as you need, and you can incorporate as many modules as you want into a single model. This allows you to create very large or complex models that are broken down into cohesive, self-contained pieces.

Note: When you import or export data from a model that contains modules, all module data in the model are also imported or exported. For more information, see Importing and Exporting Module Variables.

What Do You Want to Do?

Read about module concepts

See a module example

Learn about different ways to use modules

Learn about module inputs and outputs

Create a module