User`s guide

Guidelines for External Storage of Requirements Links
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Guidelines for External Storage of Requirements Links
If you decide to store requirements links in an external file, keep the following guidelines
in mind:
• When sharing models, use the default name and location.
By default, external requirements are stored in a file named model_name.req in the
same folder as the model. If you give your model to others to review the requirements
traceability, give the reviewer both the model and .req files. That way, when you
load the model, the RMI automatically loads the links file.
• Do not rename the model outside of Simulink.
If you need to resave the model with a new name or in a different location, in the
model window, use File > Save As. Selecting this option causes the RMI to resave the
corresponding .req file using the model name and in the same location as the model.
• Be aware of unsaved requirements changes.
When you change a Simulink model, an asterisk appears next to the model name in
the title bar, indicating that the model has unsaved changes. If you are creating new
requirements links and storing them externally, this asterisk does not appear because
the model file itself has not changed. You can explicitly save the links, or, when you
close the model, the RMI prompts you to save the requirements links. When you save
the model, the RMI saves the links in the external file.