PROBLEM TO BE SOLVED: To quantitatively evaluate illegal risk of a chain of personal identification formed by a plurality of application procedures.;SOLUTION: The relation of document groups and procedures required till acquisition of a document for personal identification required for a predetermined application, such as for example, a case that a driver's license or a combination of a health insurance card and an employee ID card is accepted as a personal identification document to the issuance application of a passport, that a health insurance card or a copy of certificate of residence is accepted as a personal identification document to the issuance application of the driver's license is stored in a personal identification diagram storage part 21. Cases of illegalness occurred in the application procedures and/or acquisition of an optional document for personal identification is accepted by an illegal case data accept part 31. An illegal risk evaluation part 41 evaluates the possibility of illegal use of any of the documents for personal identification based on the personal identification diagram and the illegal case data.;COPYRIGHT: (C)2009,JPO&INPIT
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