INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To analyze a type of the communication of a time when a communication network continues while the privacy of an organization staff being an object of investigation is maintained.

SOLUTION: A transmission/reception record in which a sender identifier identifying a sender of electronic mail transmitted within a period being an object of an analysis, a receiver identification mark identifying a receiver of the electronic mail and a transmission time of the electronic mail are matched is stored. The communication of the electronic mail is analyzed based on the transmission/reception record within the period being the object of analysis. A relation between the electronic mails is investigated only from the sender and the receiver of the electronic mail and information on time when the mail is sent, and the communication of an institution is investigated.

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