Here's an interesting example / tutorial / technique for using relative dates in Cognos Report Studio as well as the scheduling of such reports. In this example the report administrator would setup a report that would display activity for the past week that would run every Monday morning: Relative Dates In Business Reporting
Examples of relative dates that many organizations might use are activity in the last 7 days, Month to date (MTD), Year to Date (YTD) to name a few.
