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Can't Add Trace to SysML Requirement [message #1122459]

Tue, 01 October 2013 11:46

David Hetherington
Messages: 8
Registered: May 2013
Location: Austin, TX

Junior Member

I am trying to trace a requirement back to a use case. Very similar
to Figure 12.20 of Friedenthal's "A Practical Guide to SysML" book.

In order to isolate the problem, I created a fresh SysML project in an
empty directory and asked for a requirements diagram as the first diagram.
I then selected a requirement from the palette and dragged it onto the diagram.

So far so good.

Next I created a use case diagram and a simple use case.

Now, returning to the requirements diagram, I want to add a <<trace>> relationship
relating the requirement to the use case. However, when I select the requirement,
all the SysML properties controls such as "Derived", "Traced", "Satisfied by" are all greyed out.

Also, the palette does not offer an edge for "Trace" which it really should)

index.php/fa/16342/0/

Any suggestions?

Thanks,

David Hetherington

Attachment: Requirement_Trace_Controls_Greyed_Out.png
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David Hetherington

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