LOTTERY SERVER DEVICE, LOTTERY METHOD, LOTTERY PROGRAM AND RECORDING MEDIUM CAPABLE OF READING COMPUTER STORING LOTTERY PROGRAM

摘要

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.;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.;COPYRIGHT: (C)2012,JPO&INPIT