| 1969〜1970 | Worked at Audit Division. |
| 1971 | Received a fundamental education the U.S. on computer and design and installation of business management system. During this period, participated an installation project of production control system as a programmer at Philadelphia. |
| 1972 | Supervising the installation of cost accounting system at a construction company. |
| 1973 | Participated a preliminary system design of integrated production control system at a manufacturer of air conditioners. |
| 1974 | Participated a MAC-PAC software design project at AA & Co., WHQ. |
| 1975 | Designed and installed purchasing & inventory control system and accounting system at a manufacturer of outer motors. |
| 1976〜1982 | Managed the following projects at a major motorcycle company:
- Design & development and installation of purchasing and inventory control system and product operation system.
- Development of computer system, preliminary system design project of integrated production system.
- Management of system test, conversion planning, conversion preparation and installation project
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| 1982〜1984 | Conducted a preliminary system design of MAC-PAC and completed an installation at a major electronics manufacturer and a major manufacturer of telecommunication equipment. |
| 1985〜1986 | Planned strategic information planning and designed and installed division management system at a major food processing company.
Planned a strategy for the international systems development at a major electronics manufacturer and installed a standardize systems at its local subsidiaries in the overseas.
Designed a international management control system at a
pharmaceutical company and installed its subsidiaries in the
overseas. |
| 1987〜1988 | Managed a design, development and installation of total pipeline system of integrated system of manufacturing and distribution at a major electronics manufacturer. (Global Pipeline) |
| 1989〜Present | Managed a installation project of total pipeline system at a major automobile manufacturer.
Managed a design and installation project of MAC-PAC/JIT at a
major electronics manufacturer. |