I am newly involved in the BI/BPM space. One of the things we are experiencing with our solution is that our client's data has little integrity. This is not an assignment of creating or building a DW, but rather one of analyzing and incorporating client data into our solution. When there is a lack of referential integrity, the scoping exercise may not necessarily identify the issue up front. When it does, it may cause the scope/budget of the project to go way over what the client assumed (since they are convinced their data is clean) or the issue(s) doesn't become obvious until significant time has gone by and we are down a path that ultimately feeds into the client impacting issues raised above. Is there a tool or methodology that can assist in identifying lack of referential integrity or just bad data?

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