This book constitutes the thoroughly refereed joint postproceedings of the satellite activities held at the 7th International Conference on the Unified Modeling Language , UML 2004, in Lisbon, Portugal in October 2004 complementing the main conference track. The book presents reports on the 10 workshops held at UML and covers a broad range of topics around systems modelling; these reports are compiled by the respective workshop organizers. Furthermore 12 revised reviewed papers from the industry track are included as well as 11 short papers corresponding to selected poster/demo presentations and a summary on the UML tools exhibition.