If anybody is using Cognos packages for Deltek Costpoint then you know how difficult it is to make reports using those packages and how much performance issues are caused by it.
I recently made self-service BI packages for it which allows you to make more than 80% of reports simply by drag and drop things in one single query no matter how many tables are involved. I made it for GL, AP, AR, Sales, Purchasing, Project Reporting, Time & Expense.
Please feel free to contact me if anyone needs any help. I also remade reports which were taking days to run and now the new reports run in seconds!