Pedagogical experience: 1978 – present
- KAIST seoul , vice-president , 2006-currently
- GFME(Global Foundation for Management Education), Board Member, 2005-currently
- AACSB(The Association to Advance Collegiate Schools of Business), Board Member, 2004-2006
- AAPBS(Association of Asia-Pacific Business Schools), President, 2004-currently
- KAIST graduate school of management, dean, 2001-currently
- KAIST planning department,chief 1996-1998
- US, UCLA university,management science, visiting professor, 1991-1992
- The University of Michigan, industrial engineering, visiting professor,1984-1985
- KAIST management engineering and industrial management, KAIST graduate school of management, professor, 1980
- KIST computer center senior researcher, 1978-1980
- Seoul National University industrial engineering, lecturer , 1978-1980