Philippe Le Hegaret heads the W3C Interaction Domain, which produces frontend web technologies including HTML5, CSS3, SVG, WOFF, and web APIs. Philippe is currently a participant in the Web Performance Working Group and organized the W3C workshop on video on the Web in 2007. Until July 2008, Philippe led the W3C Architecture Domain, which produced W3C core technologies in the area of XML, web services, and internationalization. He is a former chair of the Document Object Model (DOM) Working Group and coedited some of the DOM specifications.