Lessons learned - Conducting a User Experience evaluation of a Trust Policy Authoring Tool

Most contributions on usable policy authoring and usable IT-Security only focus on the design phase of a tool and on stating guidelines how to make these tools and systems user friendly. There are only some contributions introducing work regarding usability evaluations but even less introducing user experience evaluations. This contribution wants to address this lack. Based on a user experience evaluation with a trust policy authoring tool we present the lessons learned derived from the results.