When you configure a site in Site Administration, you can set the Search content sets it is associated with. Search manages search queries so that, when you query the index for a given site, you only get back results from content sets that are associated with that site.

For details on creating content sets, see the ATG Search Administration Guide. For information on assigning content sets in ATG Knowledge, refer to the ATG Service Installation and Configuration Guide. For information on assigning content sets in ATG Self Service, refer to the ATG Service Installation and Configuration Guide.