Selected Professional Service Activities
ACM Hypertext: General Chair, 2002
ACM Publications Board:
Chair, 2001-present; Member 1999-2001
ACM Digital Library Conference: Progam Chair, 1999
ACM Transactions on Information Systems:Editor-in-Chief: 1983-1995
ACM Multimedia: General Chair, 1995
ACM SIGOIS Conference on Office Information Systems: General Chair, 1989; Program Chair, 1988
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