OPTIMUM ACCOUNT INTEGRATED SUPPORT SYSTEM, OPTIMUM ACCOUNT INTEGRATED SUPPORT METHOD AND OPTIMUM ACCOUNT INTEGRATED SUPPORT PROGRAM

摘要

PROBLEM TO BE SOLVED: To select a combination optimally performing account integration of a plurality of systems after considering both convenience and security improvement having relation of trade-off to each other.;SOLUTION: This optimum account integrated support system 100 comprises: a grouping combination reception part 150 receiving pieces of kind information of the systems and information for designating the grouped combination allowing the account integration of them, and storing them into a memory 103; a risk value reception parts 151 receiving risk values of the plurality of systems, and storing them associatively to the kind information of the plurality of systems; and an optimum combination determination part 152 calculating account management cost based on a total account number after the account integration and risk increase about each the combination, and determining and outputting the optimum combination minimizing an objective function calculated as a difference of the account management cost and the risk increase.;COPYRIGHT: (C)2009,JPO&INPIT