Can you please elaborate your query a little bit? I am not sure whether it belongs to the address verification category. I feel it sounds more like Scorecard and Profiling. Please clarify.
Scorecards can be used to measure validity of the data. There is no direct way to measure uniqueness of a data element. But if you use Informatica developer tool and your source is on a database, there is a workaround to get the uniqueness of the data element on the scorecard.
wondering about the same. Did you get an answer on this?