I have a user reporting (and I see the behavior myself) that if he has a Test Set, and attempts to link a defect to a specific item within the test set, the defect becomes linked to _all_ items in the test set.
I had thought this was intended (even if less than ideal) behavior. He tells me that this was not the behavior in previous versions of QC he has used elsewhere. We're using QC 11.
So what is the proper behavior here when you link a defect to an item in a test set?
In QC10, 9.2 and 9.0:
(I haven't used anything older)
If you link a defect to a Test Instance (a.k.a. Test in Test Set) there is a Direct Link is established between the bug and the test instance. There's an Indirect Link from there to the containing set.
If you look at the Linked Defects tab for the Set you will see the defect *if* you have 'All Links' selected in the drop down. There's an indirect link between the defect and the set via the Test Instance.
If you have selected 'Direct Links' in that drop down, you should only see defects that are linked to the SET, and not those linked to the specific items. Anything different sounds like a defect to me.
I think part of the issue is to figure out exactly what steps are being used to like the defect to the item in the test set. If you want it linked to just one test instance in a test set, then you need to double click on that test instance (or right click on it and select Test Instance Details) to display the Test Instance Details dialog. From there you can choose the Linked Defects dialog, and link a defect directly to that one Test Instance.
If instead your user is selecting the Linked Defects tab that displays in the same tab area as Execution Grid, Execution Flow, etc., then your user is actually linking the defect to the test set rather than to a specific test instance within the set.
Perhaps you can provide more info on what steps the user is executing to link the defect, and why the user thinks it is linked to all items in the test set.
(Opinions and information contained in this post are wholly my own and do not reflect the opinions of my employer.)