Helmut Degen is a senior consultant for requirements engineering for Siemens Corporate Research, Inc. in Princeton (NJ). Before, Helmut worked as a senior user experience manager for Vodafone Global Marketing in Duesseldorf, and for the Siemens User Interface Design center in Munich (both in Germany). Helmut holds a PhD in information science from the Freie Universitaet Berlin (Germany) and a master in computer science from the Universitaet Karlsruhe (Germany). Helmut is member of the Usability Professional Association and the Society of Computer Science in Germany (Gesellschaft fuer Informati...