System functional and performance requirements are linked to the use case with a <<trace>> dependency. There are two ways to implement this dependency:

• In the browser, using the SE-Toolkit feature Create Dependency
• Graphically, in a Requirements Diagram 

In this example, the linking process will be shown for the use case Uc1ControlEntry.

1. In the Tools Menu select Tools > SE-Toolkit\Modeling Toolbox. In the dialog box click on the Dependencies tab and select the profle PredefinedTypes and the stereotype Trace.
2. In the UseCaseDiagramsPkg select use case Uc1ControlEntry.
3. In the Modeling Toolbox dialog box click Set Source.
4. In the SystemRequirementsPkg select the requirement the use case is linked to.
5. In the Modeling Toolbox dialog box click Set Destination.
6. In the Modeling Toolbox dialog box click Create Dependency with Stereotype.