Scheduling Options(CMC)/ Business Objects Xir2

Question

Environment spec:
Aix 5.3
Business Objects Xir2
Crystal reports Xi
DB2
Tomcat
Whilst scheduling a report from the CMC, there is a 'Schedule For' tab
I am trying to determine how this option works, whilst scheduling for a selected group/users.
I have reviewed the relevant documentation in the Business Objects Administrators guides in reference to this including Xi, XiR2 and XiR3/3.1.
There is no clear definition.
I asked this question, as we are trying to determine if whilst using this option does BO execute the query and then filter data according to each group/user  OR execute the query for each specific user/group. If the latter is the case then this will have a big impact on our environment resources.
unfortunately we have reach EOL for Business Objects XiR2 so tech support will no longer advise us.
If anyone can provide us with any insight or direction this will be greatly appreciated
Many thanks

Answer 1

HI,
Option u2018Schedule foru2019 is generally used when you want schedule  the reports on behalf of other users such that when underlying queries hit the database, they use the useru2019s id and pull the data based on his authorization over the data.
With SAP BW as backend, the impact can easily be seen where a report will show different dataset if run for two different sap user who different data access. Same should be the case with other databases as well.
Thanks,