Traceability between Use Cases and Classes

[Hardy]

I have requirement diagram (with requirements), use case diagram (with use cases), class diagram (with classes) in my model.

In my use case diagram I draw the realization relationship between use cases and requirements to illustrate how requirements are realized.

Then I begin to create sequence diagram as child diagram for each use case. In my sequence diagram I use instance of class as lifeline.

Now the question is that is there a way in traceability matrix I can find out the relationships between my classes and use cases and/or requirements?

[qwerty]

As the matrix is only two-dimensional the answer is clear: you can't. But you may use the traceability window for your purpose. It's also possible to create a query to reveal a more-dimensional relation.

q.