Traceability matrix to/from Class atributes/operations

[Pawel Zubkiewicz]

Hi,

I would like to show in traceablity matrix which class attributes and operations are used by different UseCases. However in Relationship Matrix I can only display elements located in given package. Is is possible to go one level deeper into "sub-elements"?

Also, if it's not possible to realize my idea, I'm open to your suggestion how I can document that. I already have class element with attributes and operations defined.

PS. I just checked. I can drag and drop class operation element on diagram, it is of type Action. So it's perfectly legal to add a relationship to/from it. Question is, how to show that in Relationship Matrix.

[qwerty]

You could use a <<trace>> with Link to Element Feature.

q.

[Pawel Zubkiewicz]

You could use a <<trace>> with Link to Element Feature.

Hi,
I intend to use trace relationship, however I don't fully undestrand your answer. How can I add it to "element feature" ? It's possible to do it in Relationship Matrix? Or should I do it on diagram (where I have class element expended with all attributes/operations visible)?
Could you please explain

[Pawel Zubkiewicz]

Hi qwerty, I manged to find out what link to element feature is :-)
Thanks 

Now, my only question is: is it possible to show on Relationship Matrix?

[qwerty]

I rarely use the relationship matrix, so I made a quick test. I was able to show use case vs. attribute. It was possible to create a relation in the matrix which was named Abstraction, but I could not see that in the diagram. Vice versa I could not show a trace in the relationship matrix (because that was setup agains the class). I'm no sure about this Abstraction but is smells. As per UML spec you can not create relations to features. The "Link to Element Feature" is an EA extension.

q.

[Pawel Zubkiewicz]

Thanks for checking, more or less I have the same findings.

[qwerty]

I think that the attribute thingy is a bug in the RM since you can not create connectors to attributes. Maybe someone wants to report that.

q.

[Pawel Zubkiewicz]

By the way, qwerty do you know if it's possible to extract from connector the "element feature" (attribute or operation) to which it is assigned?
I want't to write a script which will iterate through all class's operations and list only those that have  Element Feature links.

[Geert Bellekens]

Search for "link to element feature" and you should find some topics with the answers.

Geert

[Pawel Zubkiewicz]

thanks Geert :-)

Just for future refrecence (maybe somone will need this)

For a certain validation I need to check if an attribute with a certain stereotype has a connector that is 'linked to the attribute'

Linking to an attribute can be done with the 'link to element feature'.

I have found that an attribute has an EA_GUID. For example: {7DBF1703-D202-4336-B1C9-B63D7522089A};
When a connector is linked to this attribute, the StyleEx field of the connector contains: LFSP={7DBF1703-D202-4336-B1C9-B63D7522089A}R;

That's all I needed to know :-)