VALIDITY ASSURANCE SYSTEM, VALIDITY ASSURANCE METHOD, AND RECORDING MEDIUM STORING A PROGRAM

摘要

A validity assurance system of the present invention includes a terminal apparatus that generates a slip based on slip item data representing a slip item and slip content data representing a slip content corresponding to the slip item, a slip management apparatus including a slip management database that stores the slip content data representing the slip content of the slip generated by the terminal apparatus, and an invoice issuing apparatus that generates an invoice based on the slip content data stored in the slip management database, wherein in a case where a slip identification code generated by a slip identification code generating part of the terminal apparatus is matched with an invoice identification code generated by an invoice identification code generating part of the invoice issuing apparatus, validity of the voucher is assured.