User`s guide

Supported Model Objects for Requirements Linking
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Supported Model Objects for Requirements Linking
You can associate requirements links between the following types of Simulink model
objects:
Simulink block diagrams and subsystems
Simulink blocks and annotations
Simulink data dictionary entries
Signal Builder signal groups
Stateflow charts, subcharts, states, transitions, and boxes
Stateflow functions
Lines of MATLAB code
Simulink Test™ test manager test cases