This example shows how to link a parent model and all its referenced models to a single data dictionary.
Open the top model containing the model reference hierarchy.
In the Simulink® Editor, click File > Model Properties > Link to Data Dictionary.
In the Model Properties dialog box, set Defined in to Data Dictionary and click New to create a data dictionary.
Name the data dictionary, save it, and click Apply.
Click Yes in response to the message that explains how Simulink migrates design data stored in the base workspace.
A message appears, reporting the number of items imported to the data dictionary.