| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lottery server device, etc., which allow a shop selling commodities to flexibly perform area marketing by using lottery via a network. <P>SOLUTION: The lottery server device connected to terminals operated by users via the network supports users in purchasing commodities and gives them privilege for each commodity purchase procedure. The device determines a winning probability of the lottery based on a locational difference between commodity delivery source information and commodity destination information, and execute the lottery in such a manner that its winning probability is to be the determined winning probability. <P>COPYRIGHT: (C)2012,JPO&INPIT |
