Access does not provide logging for you. Provided all your changes are made
through a form, you can use the events of the form to achieve this, but you
will need to be comfortable with VBA code and SQL statements.
Details in:
Audit Trail - Log changes at the record level
at:
http://members.iinet.net.au/~allenbrowne/AppAudit.html

Signature
Allen Browne - Microsoft MVP. Perth, Western Australia.
Tips for Access users - http://allenbrowne.com/tips.html
Reply to group, rather than allenbrowne at mvps dot org.
> How do I record log in activites? When a user makes a change i want to be
> able to see the original document and the changed document, How long they
> were using the program.