The Activity Log table is a table used by   administrators in order to monitor events, such as logins or modifications, that occur in a particular KB. 

Use Case

Activity Log records are created by the  system. No group has permission to manually create records in this table. The Activity Log table is hidden from the left pane and only available from the Setup > Tables menu. Only the Admin group has access to the table by default; the table must first be activated by the Admin group for it to appear in the left pane. The Activity Log provides a system-wide history of changes based on a predefined criteria. By default, the system tracks all logins, all deletions, and certain admin activities that have occurred in the past month. An Activity Log record can be configured to capture other information by creating a new Audit Rule record through the Setup > System > Configure Activity Log menu. Both the items tracked and log duration are configurable for each Activity Log record.

Ownership

Records in this table are created by the system. No group has permission to manually create records in this table. Ownership cannot be assigned.

Reports

The Activity Log table contains two default Chart/Reports.