"ADD 2011 event (in Athens Greece) is over. I do have, however a leftover from my demo with Data Quality Services.
Here is the set of screenshots that explain the demo of creating and running a cleansing project and a matching project:
The DQS/Data Quality Services coming in SQL Server 2012 (fka Denali) looks pretty interesting. I can see there something like this could come in real handy with some "real world" data sets...
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"Data Quality and Master Data Management with Microsoft SQL Server 2008 R2" Free 226 page eBook