A contribution on WebRatio and WebML has been accepted at the TOOLS Europe 2008 Conference, to be held in Zurich (CH), June 30th - July 4th 2008.The paper we will present is:"Web applications design and development with WebML and WebRatio 5.0"authored by R. Acerbis, A. Bongio, M. Brambilla, S. Butti, S. Ceri, and P. Fraternali.