| 摘要 |
<p>As far as voluntary exchange of data stored on the card (1) for electronic points, writeable on the same card (1) is concerned, the exchange between databases (A) and (B) for fields (11 and 12) on card (1) and database (C) for field (13) on the same card (1) is anticipated. The data in the transaction database (A) of field (11) on card (1) is protected and accessible only to the card owner, its modification or updating with the exception of deleting is disabled. Even data in the proprietary database (B) of field (12) on card (1) is protected and accessible only to the card owner (1), while its modification or updating is enabled only with the consent or confirmation of the card (1) owner as well as the DAC centre (4) for data analysis via a read-writeable unit (3). The data in the bonus database (C) in field (13) on card (1) can be written based on reading or assigning data from data groups (A) and (B) from fields (11 and 12). The exchange of data from data groups (A) and (B) of fields (11 and 12) for data from data group (C) field (13) is according to the invention only possible in such a way that while reading at least part of the data from data groups (A) and (B) fields (11 and 12), a simultaneous entry of corresponding data is made to data group (C) field (13) of card (1).</p> |
