Information processing system managing membership of group of plurality of terminals based on detecting linkage mark and executing linakage application

An information processing system comprising:

• a first information processing terminal including a communication interface, a camera configured to capture an image around the first information processing terminal, and processing circuitry;
• and
• a second information processing terminal configured to manage a plurality of information processing terminals as member terminals of a linkage group,
• wherein the processing circuit of the first information processing terminal is configured to, in response to detection of a linkage mark from a captured image acquired by the camera, transmit, to the second information processing terminal by the communication interface, detection notification data including mark identification information identifying the linkage mark and first terminal identification information identifying the first information processing terminal,
• wherein the second information processing terminal is configured to, upon receiving the detection notification data, manage the first information processing terminal as one of member terminals of the linkage group for executing linkage application software associated with the mark identification information included in the detection notification data, and transmit start instruction data instructing a start of the linkage application software to the first information processing terminal,
• wherein the processing circuitry of the first information processing terminal is further configured to:
• in response to reception of the start instruction data, start the linkage application software associated with the linkage mark, and
• in response to termination of the linkage application software, transmit, to the second information processing terminal by the communication interface, termination notification data notifying the termination of the linkage application software and including the mark identification information and the first terminal identification information, and
• wherein the second information processing terminal is further configured to, upon receiving the termination notification data from the first information processing terminal, excludes the first information processing terminal corresponding to the first terminal identification information included in the termination notification data from the linkage group based on the linkage mark identified by the mark identification information included in the termination notification data.