COMMUNICATION TERMINAL, INFORMATION MANAGEMENT DEVICE, AND PROGRAM

摘要

Pairs of communication addresses of communication terminals and identification names of users are registered separately by category, without users having to perform complicated operations. The relationship between users who use individual communication terminals is inferred, based on the distances between communication terminals that are to communicate and the measurement dates/times of those distances, or the positions of communication terminals to be communicated with and the measurement dates/times of those positions, and the contents of an address book are sorted by category based on these inference results. For example, users who are always in close proximity to one another are sorted into a "family" category because of the high possibility of them being family, which is the most intimate form of existence, users who are in close proximity only during weekday days are sorted into a "colleagues" category because of the high possibility of them belonging to the same organization such as a company, and users who are in close proximity only on weekday nights or holidays are sorted into a "friends" category because of them being in relationship where they spend their free time together.