BUYING AND SELLING SUPPORT SYSTEM, BUYING AND SELLING SUPPORT APPARATUS, BUYING AND SELLING SUPPORT METHOD, AND BUYING AND SELLING SUPPORT PROGRAM

摘要

PROBLEM TO BE SOLVED: To easily find out the other party of transaction.;SOLUTION: Each of a plurality of portable telephone sets stores its own transaction information including buying and selling conditions in an EEPROM, and transmits its own transaction information and its own location information showing the current location to the other portable set, and receives other party buying and selling information stored in the other portable telephone set and other party location information showing the current location of the other portable telephone set from the other communication terminal. Then, whether or not the buying and selling conditions of the its own transaction information are matched with the buying and selling conditions of the other party transaction information is decided (S21), and when a distance between the location specified by the its own location information and the location specified by the other party location information is within the range of an allowable distance (S30: YES), and when it is decided that the buying and selling conditions are matched (S29: YES), the portable telephone set displays at least a portion of the other party transaction information whose buying and selling conditions are decided to be matched (S32).;COPYRIGHT: (C)2009,JPO&INPIT