ECOOP is the premier forum in Europe for bringing together practitioners, - searchers, and students to share their ideas and experiences in a broad range of disciplines woven with the common thread of object technology. It is a collage of events, including outstanding invited speakers, carefully refereed technical - pers, practitioner reports re?ecting real-world experience, panels, topic-focused workshops, demonstrations, and an interactive posters session. The 18th ECOOP 2004 conference held during June 14-18, 2004 in Oslo, Norway represented another year of continued success in...