Associate Professor, Department of Information Management, Ming Chuan University, Taipei, Taiwan, R.O.C.
銘傳大學資訊管理系專任副教授

Associate Professor, Fu Jen University, Taipei, Taiwan, R.O.C.
輔仁大學專任副教授

Lecturer, Chung-Hua Junior College, Taipei, R.O.C.
中華工專專任講師

Assistant Resesrcher, Chung-hua Telecommunication Laboratories, Chung Li, Taiwan, R.O.C.
交通部電信研究所聘用助理研究員