MIZUTANI Masahiro   Faculty of Business Administration Department of Business Management   Professor

■ Title   Proposal and Trial Implementation of Open Source Clicker System

■ Outline   We propose and implement an open-source clicker system which is intended to uses as a handy classroom tool inexpensively. This system is composed by a single PC and a Wi-Fi router if needed brought by a teacher, and student's devices connectable to the router communicating to a server on the PC. This clicker system is carefully designed to avoid to leave individual signatures of students inferable from theses responses for sake of collecting honest and quick feedback of students. The system server is implemented by means of WebSocket for communication with students devices, because of the rapid coding of rich interactiv-ity and the relaxing of congestion which might be caused by Wi-Fi communication. The rough performance test using popular Wi-Fi routers suggests this system is of practical.   Yoshihiro Ohmi, Masahiro Mizutani and Yasuo Nagai   Collaboration   Symposium Series2014 on Education, Information Processing Society of Japan   Information Processing Society of Japan   2014(2),pp.201   2014/08

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