| 摘要 |
A customer purchases a voucher by presenting a security card at a point-of-sale terminal ( 1 ). The terminal ( 11 ) communicates with a remote EPOS host ( 10 ) to validate the security data. The host ( 10 ) communicates with a transaction processor ( 30 ) to generate voucher data. Operations of the terminal ( 1 ) are triggered by a program read from the security card together with the security data. The host ( 10 ) splits the full voucher data into a first set transmitted to the terminal ( 1 ) and a second set transmitted over the air via a gateway ( 14 ) to a customer mobile device ( 20 ). The host ( 10 ) dynamically maintains a voucher database ( 12 ) and a security data database ( 13 ) in response to ongoing communication with the terminals ( 1 ) and the transaction processors ( 30 ).
|
