| 摘要 |
<p>A transaction process, such as a charging process, can be restricted from being repeatedly performed when a data item that has been downloaded once is to be redownloaded. A charged data table including user identifying information (ID) and the name of a charged data item associated with each other is prestored in a charge management DB. When a data provision request is made for the charged data item, the charging process is skipped at a data distribution server (18), allowing the data item to be downloaded without any charging process. <IMAGE></p> |
