1. Graduate School of Design, Kyushu University, Fukuoka, Japan
2. Department of Industrial Engineering, University of the Philippines Los Baños, Laguna, Philippines
3. Faculty of Design, Department of Human Life Design and Science, Kyushu University, Fukuoka, Japan
4. Institute for the Advancement of Higher Education, Okayama University of Science, Okayama, Japan
5. Department of Industrial and Management Systems Engineering, Dong-A University, Busan, Korea