"Hiroyuki Umemuro,Yoshiko Shirokane","One year change in computer attitude, computer usage and skill transfer of Japanese elderly computer users",,"Technical Report, Department of Industrial Engineering and Management, Tokyo Institute of Technology",,"Vol. 2001-4",,,2001, "Kenji Hirano,Hiroyuki Umemuro","Business System Transformation Model: Concept and Application",,"Technical Report, Department of Industrial Engineering and Management, Tokyo Institute of Technology",,"Vol. 2001-3",,,2001, "Hiroyuki Umemuro","Lowering Japanese elderly users' resistance to computers using touchscreen technology",,"Technical Report, Department of Industrial Engineering and Management, Tokyo Institute of Technology",,"Vol. 2001-2",,,2001, "平野健次,梅室博行","ビジネスシステムトランスフォーメーションモデルとその利用",,"日本経営工学会平成13年秋季研究大会予稿集",,,,"pp. 82-83",2001, "HIROYUKI UMEMURO","Long Term Change in Computer Attitude, Computer Usage and Skill Transfer in Elderly Users of Touch Screen Interface",,"Proceedings of the 1st International Conference on Universal Access in Human-Computer Interaction",,,,"pp. 530-534",2001,