Prof. Dr. Eva BittnerUniversity of HamburgInformation Systems Socio-technical System Design (WISTS) Vogt-Kölln-Str. 3022527 Hamburg Tel: +49 40 42883-2409E-Mail: bittner@informatik.uni-hamburg.de Dr. rer. pol. Sarah Oeste-ReißUniversity of KasselInformation SystemsResearch Center for IS Design (ITeG) Pfannkuchstraße 134121 Kassel Tel: +49 561 804-6154E-Mail: oeste-reiss@uni-kassel.de