Attribute - Workable? Functional?

[maju...@gmail.com]

Hello everyone,

After reading through the document about ACC, I found it is a really useful model to manage risks in terms of features/tests/bugs. 

However, I have a question here about the attribute part. http://code.google.com/p/test-analytics/wiki/AccExplained

For any test plan, most capabilities we firstly think of are the functional capabilities. For example, a user should be able to remove the items in the shopping cart. Each of these functional capabilities can be extended to a user story.

So, should we have an attribute named "Functional" or "Workable"? Even we have such an attribute, it may make the ACC matrix pretty unbalanced. For example, 80% of the total capabilities are assigned to the "Workable" attribute. I believe that most of the tests/bugs will be associated to this attribute also. 

Is this the right way to use ACC?

Thanks

Jun