Composite software provides heterogeneous query access by retrieving data from different data sources using a single connection. The data sources are managed by Composite software, and the connections to Composite from Cognos 8 are made using an ODBC system DSN.
For more information about using Composite, see the Composite software documentation. For more information about creating the system DSN and using Composite Information Server with Cognos 8, see the Cognos 8 and Composite Information Server Getting Started and the Cognos 8 and Composite Information Server Readme on the Composite Information Server installation CD.