Example

Ten full copies of a Sales Analysis report are printed each day using the JCL COPIES parameter. The report contains details of sales by region followed by a summary of sales by region. Each region is only interested in detail figures from its own area and summary information for all areas. In this environment, there is no way to exclude the unwanted detail data, so each region receives a full copy of the report on a daily basis.

We may also want to exclude data depending on the day of the week. Perhaps a specific user receives a General Ledger report on a daily basis (Monday – Friday), but the only day the user actually wants the full report is Friday; on the other days, the summary section would suffice.