1. 1) Ogura, H., The Way which Utilizes Why2 Analysis, JIPM Solutions, 1997 (in Japanese).
2. 2) Miyachi, Y., Takata, N. & Matsumoto, J., "Measures for Human Factor Analysis in Space Development: Measures for Fault Reduction Resulting from Human Error (First Report)," The 13th Reliability Symposium in Reliability Engineering Association of Japan, pp.7-10, 2000 (in Japanese).
3. 3) Ishibashi, A., Why are Accidents Repeated ? Analysis of Human Factors, Japan Industrial Safety & Health Association, 2003 (in Japanese).
4. 4) Shigemori, M. & Miyachi, Y., "Analytical Method for Human Factor Accident by Railway Technical Research Institute," The 12th Research Presentation Meeting in Reliability Engineering Association of Japan, 2004 (in Japanese).
5. 5) Kusukami, K. & Motosawa, T., "Introduction of analytical method of human error used by 4M-4E model," 22nd Convention of Japanese Association of Industrial/ Organizational Psychology, pp.69-72, 2006 (in Japanese).