Marc Sel. The Business Perspective on Roles Including Root Causes of Implementation Problems and Proven Ways to Overcome them. In Norbert Pohlmann, Helmut Reimer, Wolfgang Schneider, editors, ISSE/SECURE 2007 - Securing Electronic Business Processes, Highlights of the Information Security Solutions Europe/SECURE 2007 Conference, Warsaw, Poland, September 25-27, 2007. pages 157-165, Vieweg+Teubner, 2007. [doi]