TRANSACTION SETTLEMENT METHOD, TRANSACTION SETTLEMENT SYSTEM AND PORTABLE COMMUNICATION TERMINAL USED THEREFOR AND SETTLEMENT TERMINAL FOR MEMBER STORE

摘要

PROBLEM TO BE SOLVED: To prevent illicit settlement even in the case of loss, theft, information appropriation or the like of a card or the like in settlement of credit transaction. SOLUTION: In settlement by a settlement terminal for a credit transaction member store connected to a host computer, ID related information or position information of a portable communication terminal is inputted into the host computer from the ID-registered portable communication terminal, to thereby execute identification or credit inspection.