Contact management system and contact management method

A contact management system, comprising:

• a first communication terminal configured to
• store therein first contacts, and
• have a first application program installed therein;
• and
• a managing device including:
• a storage device configured to
• store therein application information related to respective application programs installed in any of communication terminals included in a first terminal group, and
• a first processor configured to
• receive, from the first communication terminal, a first inquiry about first contact information to be provided to the first application program,
• acquire first application information related to the first application program,
• acquire second application information related to second application programs installed in respective second communication terminals included in the first terminal group, the second communication terminals corresponding to the respective first contacts,
• extract second contacts from the first contacts, and
• transmit the second contacts to the first communication terminal.

A contact management method, comprising:

• receiving by a computer, from a first communication terminal, a first inquiry about first contact information to be provided to a first application program installed in the first communication terminal;
• acquiring first application information related to the first application program;
• acquiring second application information related to second application programs installed in respective second communication terminals included in a first terminal group, the second application information being stored in a storage device configured to store therein application information related to respective application programs installed in any of communication terminals included in the first terminal group, the second communication terminals corresponding to respective first contacts stored in the first communication terminal;
• and
• extracting second contacts from the first contacts on basis of the first application information and the second application information;
• and
• transmitting the second contacts to the first communication terminal.