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Gesellschaft für Informatik e.V. (GI), (Fachbereich 5 - Wirtschaftsinformatik)
Founding Member and Member of the Executive Committee of the Expert Group 'Electronic Commerce' until 2004

University of St. Gallen (HSG) Alumni

=mcminstitute Alumni

CEMS Interfaculty Group on 'Enterprise Networks & ICT' (2003-2004)

SwissICT: Expert Group 'E-Business' (until 2004)

Schweizer Informatiker Gesellschaft (SI) (until 2004)

SVIPA, the Swiss Value-added Information Providers Association: Member of the board (1995-98; SVIPA merged with SIMA in 1998 (which became SIMSA in 2002)).