We've created a Cognos requirements app tailored for Cognos consultants and professionals.
Draft Query Subjects / Query Items and Cognos reports.  Include report prototypes and architectural drawings. Bi-directional traceability - know which query subjects a report uses; know what reports use a query subject. 
Includes a team task and bug tracker. Manage team members, due dates, priorities and releases. You can add unlimited projects and items - even non-Cognos projects (including your personal stuff you've gotta do outside of work). 
Free 30-day trial.  http://cognos.gofinito.com
Finito - easily track and finish your home and work projects
Let me know what you think.  Thanks.