Formerly, he was the co-chair of the W3C XML Linking WG and member of the XML Core WG where he was implementer of the libxml and libxslt C and Python libraries wrappers. He is also implementer and maintainer of the rpmfind services. Mr. Veillard is a Member of the Board of the Gnome Project. He holds Ph.D in distributed operating system from Grenoble. Mr. Veillard's presentation is entitled "XML Usage Within the Open Source Community."