Data processing system, central management unit thereof, and data processing method

A central management unit connected to a plurality of data communication terminals that have at least a data display function, that are individually provided in each of a plurality of locations of use where general users individually check in, comprising:

• a utilization registration unit that accepts an input of user ID data and location ID data of said location of use, with respect to each general user who checks in;
• a user storage unit that stores said user ID data and said location ID data that have been inputted, in association with each other;
• a situation storage unit that stores user situation data of said general user who has checked in with respect to each location of use, together with said user ID data;
• a group identification unit that identifies said plurality of general users who have checked in as a group;
• and
• a listing display unit that causes each of said data communication terminals in said plurality of locations of use where said general users of said group have checked in, to display a listing of at least said user ID data, said location ID data, and said user situation data of another member of said group;
• wherein each of said data communication terminals is constituted of an Internet Protocol (IP) phone terminal that displays a listing of said user ID data, said location ID data, and said user situation data and also accepts an inputting operation;
• said data processing system further comprising a line opening unit that, upon receipt of an input of at least either of said user ID data or said location ID data, calls a corresponding one of said data communication terminals, and opens a Voice Over IP (VoIP) line.

A data processing method to be executed by a computer connected to a plurality of data communication terminals that have at least a data display function, that are individually provided in each of a plurality of locations of use where general users individually check in, comprising:

• registering utilization by accepting an input of user ID data and location ID data of said location of use, with respect to each general user who checks in;
• storing said user ID data and said location ID data that have been inputted, in association with each other;
• storing user situation data of said general user who has checked in with respect to each location of use, together with said user ID data;
• identifying said plurality of general users who have checked in as a group;
• and
• causing each of said data communication terminals in said plurality of locations of use where said general users of said group have checked in, to display a listing of at least said user ID data, said location ID data, and said user situation data of another member of said group;
• wherein each of said data communication terminals is constituted of an Internet Protocol (IP) phone terminal that displays a listing of said user ID data, said location ID data, and said user situation data and also accepts an inputting operation;
• said data processing system further comprising a line opening unit that, upon receipt of an input of at least either of said user ID data or said location ID data, calls a corresponding one of said data communication terminals, and opens a Voice Over IP (VoIP) line.