PROBLEM TO BE SOLVED: To provide a license management device that presents a day on which both a license purchaser and a license seller have a lower economic burden and a plurality of license products can be collectively updated, compared with a case where a plurality of license products are each individually updated.;SOLUTION: A license management device 20 comprises: held license information storage means 227 that stores license information including information on the expiration date, number, and price setting of held licenses; determination means 222 that, for a plurality of licenses designated to be integrated, determines an integrated update date on which profit and loss are reduced when the plurality of licenses are integrally updated, by using the license information on the plurality of licenses stored in the held license information storage means; and presentation means 223 that presents the determined integrated update date.;SELECTED DRAWING: Figure 6;COPYRIGHT: (C)2019,JPO&INPIT
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