You can reference portions of the current model for use elsewhere within
that model. The portion that you reference is inserted into the simulation
process flow as an internal referenced model. You define an internal
referenced model by creating a submodel that you want to use elsewhere.
Alternatively, you can add previously created, published models to the simulation
process flow to create a new model or to update an existing model. The
previously, created published model is inserted into the simulation process
flow as an external referenced model. In both cases, Isight
inserts a Reference component to control the referenced model, and it
is important that you understand how this can impact the model.