thanks for the replies. The system we have created is basically an interface for our ERP system. It is an electronic traveller system. Everyone employee has an RFID tag and this is how we are identifying who works on what job.
It would be helpful for the people working on the shop floor if it simply beeped when they scanned there tag, this is because when you actually swipe your tag it is not always clear that it has swiped ok, i know it has and it works fine , however its just re assurance for the user more than anything.
If it is too much of a faff we will probably just leave it, but it has turned out to be not as simple as we first thought