If you have an audit requirement, i.e. you need to provide data from an audit trail that is uninterrupted, unimpeachable, authenticated, and secure, to satisfy an auditor, use OpenEdge Auditing. Any solution short of that, which captures similar information, is just logging.
If you don't want to use OpenEdge Auditing for some reason, you could look at enabling key event logging.
https://docs.progress.com/bundle/openedge-database-management-117/page/Stored-key-events.html
If you're planning to stay with OpenEdge, you should also have a plan to migrate away from AIX. Progress no longer supports AIX after release 12.5. Note also that OpenEdge 11.7 will retire in April 2025.
https://docs.progress.com/bundle/openedge-life-cycle/page/OpenEdge-Life-Cycle.html