Hiroyuki Wada Yoshiji Nakajima Hajime Horiuchi Masashi Yamazaki Challenge to Education by Skill Definition Models - Curricula for Professional Systems Developers. 145-163 1992 conf/ifip3-4/1992 Professional Development of Information Technology Professionals db/conf/ifip3-4/ifip3-4-1992.html#WadaNHY92