Martin Rotard has been researcher and PostDoc of the Visualization and Interactive Systems Institute, University of Stuttgart, since June 2001. His research interests are new graphical standards on the web like Scalable Vector Graphics, MathML, X3D, SMIL, etc., Human Computer Interaction, Usability, and Accessibility. His development activities are in the field of XML-based graphics, semantic web technologies, universal access on the web, graphical user interfaces and software usability.