Logminer vs Fine-grained audit vs Flashback query

Logminer
-Started: 8i
-Data source: redo log, archive redo log
-Target user: DBA
-Performance overhead: Nil to low (supplemental log)

Regular audit trail
-Started at: ?
-Data source: DBA_AUDIT_TRAIL (from AUD$)
-Target user: DBA
-Performance overhead: Low to medium (extra logging)

Fine-grained audit
-Started: 9i
-Data source: DBA_FGA_AUDIT_TRAIL (from FGA_LOG$)
-Target user: DBA
-Performance overhead: Low to medium (triggers)

Flashback query
-Started at 9i
-Data source: undo segment, flash recovery area/archive
-Target user: end-users, DBA
-Performance overhead: low (background process FBDA)

References:
http://www.oracle.com/technology/pub/articles/oracle-database-11g-top-features/11g-transactionmanagement.html http://www.oracle.com/technology/deploy/availability/pdf/32494_OW2002_PPT.pdf http://echo.sharera.com/blog/BlogTopic/5555.htm http://blog.roodo.com/mywork/archives/4513199.html