| 摘要 |
<p>A transaction processing system 100 includes a checkout 210 in a retail store 200. The checkout 210 is configured to obtain product data from a product database 240, e.g. from a store server over a network, in response to scanning the goods at the checkout 210. The checkout 210 is further configured to obtain price comparison information from a price comparison database 250 which compares prices of the scanned goods with prices of comparable goods offered by other retailers. The checkout 210 may be configured to display messages on a display 213 during the transaction, calculate payments which may include instantaneous discounts based on the price comparison information, and to receive payments from a customer for the basket of goods.</p> |
