On the Move to Meaningful Internet Systems 2007: CoopIS, DOA, ODBASE, GADA, and IS OTM Confederated International Conferences CoopIS, DOA, ODBASE, GADA, and IS 2007, Vilamoura, Portugal, November 25-30, 2007, Proceedings, Part I - Meersman, Robert; Tari, Zahir (Springer Berlin Heidelberg, 2007)