| 摘要 |
An apparatus such as a checkout terminal comprises an input device such as a bar code scanner or RFID tag reader 21 to identify purchased items. The apparatus has a storage element which includes a store of one or more target identifiers, the or each target identifier corresponding to a target item and, when at least one of the one or more items matches one or more of the stored identifiers, 23, provides a reward 29 such as a voucher, a discount or a prize. The target identifiers may be pre-selected or selected randomly. |
