From: "Herbert Graf" Sent: Saturday, December 09, 2006 10:03 PM > As for the weigh scale, that was just a suggestion. Another technique > perhaps is to put an RFID scanner and scale in the cart. The RFID > scanner continuously scans the basket, if there is a change in weight > and no change in the RFID inventory the cart will tag itself as > "problem" and signal the self check-out terminal that a manual check > should happen. Put 2 items in the cart at the same time, one with a destroyed tag. I understand what you're trying to say, my point is just that there's so many loopholes in the system, and no real advantage. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist