Information system, card device, terminal device, server device, credit card information processing device, supporting method, information processing method, credit card information processing method, and program

摘要

To support the use of a card from which a beneficial privilege is receivable.SOLUTION: An information system comprises: a store information storage part for storing one or more pieces of store information having a store identifier for identifying a store and two or more pieces of card information having a card identifier for identifying a card which can be used at a store and privilege information related to a privilege based on the use of the card; a store specification information reception part for receiving store specification information for specifying a store at which the card is used; a held card specification information acquisition part for acquiring held card specification information for specifying two or more cards held by a user; a privilege related information acquisition part for acquiring privilege related information related to the privilege information of the two or more cards which can be used by the user at the store by using the two or more pieces of privilege information held by the card information of the two or more cards corresponding to the two or more pieces of card information held by the store information of the store specified by the store specification information among the two or more cards specified by the held card specification information; and a privilege related information output part for outputting the privilege related information.SELECTED DRAWING: Figure 1