The Metadata Samples Toolkit provides tools for analysis and visualization of lineage and dependencies across SSIS and SSAS metadata as well as SSRS report model and samples.
This is a very compelling way to visualize data flow-through, impact analysis, and dependencies.
http://www.microsoft.com/downloads/details.aspx?FamilyId=11DAA4D1-196D-4F2A-B18F-891579C364F4&displaylang=en
Great work Anjan Das, Ashvini Sharma, Michael Entin, and Wenyang Hu!
K