What is Business Objects Auditor and what can you do by using Auditor?

in bo 6.5 they are 7 auditor tables created while ur creating a repository.
the tables that can store the information about the users and their authentication.

Hi,

In business objects we have Auditor Database, which is used to store the auditing information about every user.

Like suppose if User U1 is running some report at what perticular time. or How many time the perticular report is runned by how many users at what different times.
Or
what are the Instances of Report by different users.