Cognos vs Informatica

Can anybody tell me that what are the processes used by cognos and Informatica for ETL Extraction, Scrubbing and Fusion. If you have any detailed report then please send me on
my mail ID...

thanks in Advance...

Questions by nm_105

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Cognos and Informatica are not same tool that does the same work.

Informatica is a ETL tool.  It extracts data from various sources (Oracle, db2,
Sybase, etc) transforms it and loads data into the warehouse.

Cognos is a reporting tool. 
It is used for business purpose to generate some reports (may be pictorial or
statistical representation).   It uses the datawarehouse information to generate a report.
Oracle business intelligence is another reporting tool which is becoming famous

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