The Audit Analyzer Knowledge Base is the one that stores audit records and provides mechanisms to analyze them. It is used to identify when and/or who changed the audited data.
The Audit Analyzer Knowledge Base may be the same as the Audited Knowledge Base (when K2B Audit Knowledge Base Role preference has the value 'AllRoles') or a different one (when K2B Audit Knowledge Base Role preference has the value 'Analyzer').