Data governance - Document
Audit trail
A time-stamped record of who did what in a system
What's it for?
Makes it possible to see who did what and when if something needs to be checked later.
For example…
A pay change records who changed it, when, and both values
After a supplier record is deleted, the audit trail shows which user removed it and the exact time
Think of it like…
Numbered pages in a lab notebook: you can reconstruct the experiment later