Posted information sharing system, game application executing system, storage medium, and information-processing method

A non-transitory computer-readable storage medium storing instructions which, when executed by a first computer of a client device, causes the first computer to perform operations comprising:

• executing a posted information sharing program and a game program;
• during the execution of the posted information sharing program, transmitting a posted information request for at least one item of posted information to a server device, wherein the posted information request includes a group identifier;
• during the execution of the game program, transmitting a group listing request for a list of groups to the server device, wherein the group listing request includes an application identifier of the game program;
• responsive to receiving a selected item of posted information from the server device, causing a display device to display the received item of posted information, wherein the selected item of posted information is transmitted by the server device in response to the posted information request;
• responsive to receiving a list of groups from the server device, transmitting a matching request including a group identifier of a group selected from the received list of groups;
• wherein the list of groups is transmitted by the server device in response to the listing request;
• and
• responsive to receiving a selected user identifier from the server device, starting an interactive game processing portion of the game program with a user identified by the received user identifier,
• and when executed by a second computer of a server device having a storage configured to store first data sets, second data sets, and third data sets, wherein each first data set includes an item of posted information and a group identifier, each second data set includes a group identifier and an application identifier, and each third data set includes a user identifier and a group identifier, causes the second computer to perform operations comprising:
• responsive to receiving the posted information request from a client device, select from the first data sets at least one item of posted information corresponding to the group identifier included in the posted information request, and transmit the selected item of posted information to the client device;
• responsive to receiving the group listing request, transmit to the client device a list of groups corresponding to the application identifier included in the group listing request;
• and
• responsive to receiving a matching request from the client device, select, from the third data sets, a user identifier corresponding to the group identifier included in the matching request, and transmit the selected user identifier to the client device.

An information-processing method executed by a server device, the method comprising:

• providing, in at least one storage device, first data sets, second data sets, and third data sets, wherein each first data set includes an item of posted information and a group identifier, each second data set includes a group identifier and an application identifier, and each third data set includes a user identifier and a group identifier;
• responsive to receiving a posted information request from a client device executing posted information sharing program, using a processor communicably coupled to the at least one storage device, select from the first data sets at least one item of posted information corresponding to a group identifier included in the posted information request, and transmit the selected item of posted information to the client device;
• responsive to receiving a group listing request from the client device executing a game program, transmit to the client device a list of groups corresponding to an application identifier included in the group listing request;
• and
• responsive to receiving a matching request from the client device, select, from the third data sets, a user identifier corresponding to a group identifier included in the matching request, and transmit the selected user identifier to the client device.