Server, communication terminal, information processing system, information processing method and recording medium

An information processing system comprising:

• a communication terminal having a processor, a transmitter/receiver to communicate with a server, a display, and a storage;
• a plurality of other communication terminals each having a processor, a transmitter/receiver to communicate with the server, a display, and a storage;
• and
• the server having a processor, a transmitter/receiver to communicate with the communication terminal and the other communication terminals, and a storage, wherein
• the communication terminal is configured to:
• transmit, to the server, information of viewing state indicating extent of viewing of content stored in the storage of the communication terminal;
• each of the plurality of the other communication terminals is configured to:
• transmit, to the server, information of each of other viewing states each indicating extent of viewing of the content stored in the storage of each of a plurality of the other communication terminals;
• the server is configured to:
• receive the information of the viewing state transmitted from the communication terminal,
• receive the information of each of the other viewing states transmitted from the each other communication terminals,
• based on the received information of the viewing state and the received information of the other viewing states, select at least one first user among the other users, and
• transmit, to the communication terminal, information of at least one first other viewing state corresponding to the selected at least one first user, among the other viewing states;
• and
• the communication terminal is configured further to:
• receive, from the server, the information of at least one first other viewing state corresponding to the selected at least one first user, and
• output, to a display of the communication terminal, the received information indicating the at least one first other viewing state corresponding to the selected at least one first user.

An information processing method which is executed by a server having a processor, a transmitter/receiver to communicate with a communication terminal and a plurality of other communication terminals, and a storage, wherein

• the method comprises:
• receiving, from the communication terminal, information of a viewing state indicating extent of viewing of content stored in a storage of the communication terminal;
• receiving, from the other communication terminals, the information of a plurality of other viewing states each indicating extent of viewing of the content stored in a storage of each of the plurality of other communication terminals;
• based on the received information of the viewing state and the received information of the plurality of other viewing states, select at least one first user among the plurality of other users;
• and
• output, by the transmitter/receiver of the server, information indicating at least one first other viewing state corresponding to the selected at least one first user, among the plurality of the other viewing states.

A communication terminal comprising a processor;

• a transmitter/receiver to communicate with other communication terminals or a server;
• a display;
• and a storage, wherein
• the storage stores instructions and the processor executes the instructions to:
• execute content designated by a user so as to allow the user to view the content;
• acquire information of a viewing state indicating extent of viewing of content by the user;
• receive information of a plurality of other viewing states from other communication terminals or from a server configured to receive the information of the plurality of other viewing states from the other communication terminals;
• based on the information of the viewing state and the information of the other viewing states, select at least one first user among the other users;
• and
• output, to a display of the communication terminal, information of at least one first other viewing state corresponding to the selected at least one first user, among the other viewing states.