Requirements Management Interface

How To Add a Requirement

1. Select the node you want to associate with a requirement. You can add a requirement to any node in the hierarchical tree.

If a node contains other nodes, click next to the node to expand it. You can then select one of the nodes in the expanded hierarchical tree.

2. From the Edit menu, select Add, or click the button on the toolbar.

The cursor moves to the right pane, allowing you to type in the requirement information. This example shows adding a requirement for the N node of the valve timing subsystem in the engine model.

Figure 1-6: Adding a Requirement

3. Click in the Document field in the right pane, type the full path for the requirements document, and press Enter.

Here are examples of full pathnames.



Pathname	For Document Type
c:\Requirements\Car Requirements.doc	Word
d:\car_files\car_reqts.xls	Excel
http://www-internal.com/carreqts.html	HTML
file:///bserver/car/requirements.html	HTML

4. If the requirement is at a specific location within the document, you can add the location. Otherwise, skip this step.

Double-click in the Location in document field, type the location, and then press Enter. An example location for any document type is valve_timing.

5. Repeat this process to add additional requirements for the same node or for other nodes.

Note    If your Stateflow chart contains transitions that are not unique, do not associate requirements with them.

This example shows three requirements for the N node of the valve timing subsystem in the engine model.

Figure 1-7: Node with Associated Requirements

Saved Requirements

Adding a requirement automatically saves the model or M-file.

• For a Simulink or Stateflow node, the Requirements Management Interface stores information about the requirements document with the object's data structure.
• For an M-file node, the Requirements Management Interface writes a commented line to the M-file. Do not modify this line. For example,

% Autogenerated requirements (do not modify) = { 'OTHERS' 
'c:\Requirements\Car Requirements.doc' '' 'true' }

Adding Requirements

Viewing Requirements in the Navigator