Cognos was acquired by IBM. Cognos is written in Java. It has backend data connectors, to connect to data sources. ReportNet engine generates reports which are stored in the Cognos content maangement system. Cognos CMS can be slow at times. To scale Cognos, it is possible to increase the number of application servers serving reports.
- Cognos is now installed on WebSphere (or other Java-based http servers)
- Multiple Cognos servers can also connect a single database.