Patent ID: 8918894

Claim:
An information processing device which makes personal information anonymized, in case of using personal information which is linkable to an individual, comprising: an anonymization policy providing unit which provides an anonymization policy in which priority is added to each of a plurality of kinds of anonymization processes to enhance anonymity for at least one item which can be related to said personal information; an anonymization process selecting unit which selects in sequence from an anonymization process of low priority to an anonymization process of high priority, in case said plurality of kinds of anonymization processes being contained in said anonymization policy which said anonymization policy providing unit provides is applied; an anonymization processing unit which applies said plurality of kinds of anonymization processes in said sequence selected by said anonymization process selecting unit to said personal information which an information user uses; and an anonymity evaluating unit which provides said personal information to which said anonymization process was applied up to the anonymization process concerned to said information user, in case it is judged that said personal information to which said anonymization process was applied had anonymity.