[office politics]

I have a sql express database with a couple tables of information. I have a user modifying one of these tables with a data access page using Office Web Controls.

To backtrack a bit, the sql db used to be an access db. The same user modifying the data the same way. I also had a asp page making odbc calls to the access db to lookup information. But if the data access page was open, the odbc page would error. So i moved the data to sql.

Now, I'm getting ready to setup an application to make odbc calls to the sql db. I still want the user to modify the data using the DAP. Should I allow the user to modify the live data used for the app or should I make a copy of the data evertime its updated?