Pilar Herrero, María S. Pérez, Víctor Robles, Jan Humble. GADA 2005 PC Co-chairs Message. In Robert Meersman, Zahir Tari, Pilar Herrero, Gonzalo Méndez, Lawrence Cavedon, David Martin, Annika Hinze, George Buchanan, María S. Pérez, Víctor Robles, Jan Humble, Antonia Albani, Jan L. G. Dietz, Hervé Panetto, Monica Scannapieco, Terry A. Halpin, Peter Spyns, Johannes Maria Zaha, Esteban Zimányi, Emmanuel Stefanakis, Tharam S. Dillon, Ling Feng, Mustafa Jarrar, Jos Lehmann, Aldo de Moor, Erik Duval, Lora Aroyo, editors, On the Move to Meaningful Internet Systems 2005: OTM 2005 Workshops, OTM Confederated International Workshops and Posters, AWeSOMe, CAMS, GADA, MIOS+INTEROP, ORM, PhDS, SeBGIS, SWWS, and WOSE 2005, Agia Napa, Cyprus, October 31 - November 4, 2005, Proceed. Volume 3762 of Lecture Notes in Computer Science, pages 233, Springer, 2005. [doi]