| 摘要 |
<p>The purpose of this server-managed electronic money system is to free the user from procedures required to use electronic money, allowing the electronic money to be used in approximately as short a time as stored-value electronic money systems. A mobile terminal (5) internally stores a mirror value of the server-side value balance, and an electronic money server (2) stores the server-side value balance. When making a payment, a payment terminal (6) either subtracts the payment amount from the mirror value, or, by referring to the mirror value, allows the user to complete the payment. By doing so, it is possible to complete payments as quickly as with stored-value electronic money. Later, an online request is made to the electronic money server (2) to reduce (update) the server-side value balance.</p> |
