VALIDITY ASSURANCE SYSTEM, VALIDITY ASSURANCE METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a validity assurance system, a validity assurance method and a program, for easily confirming the validity of a voucher document (invoice) without imposing any burden on a customer.

SOLUTION: This validity assurance system is provided with terminal equipment 2 for generating a slip 2a based on slip item data indicating slip items and slip content data indicating slip content corresponding to the slip items; a slip management device 3 including a slip management database for storing the slip content data indicating the slip content of the slip 2a generated by the terminal equipment 2; and an invoice issuing device 4 for generating an invoice 4a based on the slip content data stored in the slip management database. When the slip identification code generated by the slip identification code generation part of the terminal equipment 2 is matched with the invoice identification code generated by the invoice identification code generation part of the invoice issuing device 4, the validity of the invoice 4a is assured.

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