On behalf of the Organizing Committee we are pleased to present the p- ceedings of the 2008 Symposium on Component-Based Software Engineering (CBSE). CBSE is concerned with the development of software-intensivesystems from independently developed software-building blocks (components), the - velopment of components, and system maintenance and improvement by means of component replacement and customization. CBSE 2008 was the 11th in a series of events that promote a science and technology foundation for achieving predictable quality in software systems through the use of software component technology and its associated software engineering practices. Wewerefortunateto haveadedicatedProgramCommitteecomprisingmany internationallyrecognizedresearchersandindustrialpractitioners.Wewouldlike to thank the members of the Program Committee and associated reviewers for their contribution in making this conference a success. We received 70 subm- sions and each paper was reviewed by at least three Program Committee m- bers (four for papers with an author on the Program Committee). The entire reviewing process was supported by the Conference Management Toolkit p- vided by Microsoft. In total, 20 submissions were accepted as full papers and 3 submissions were accepted as short papers.

Following the tradition of previous editions of the MODELS conference, many satellite events were organized in co-location with the MODELS conference in Toulouse in 2008: 12 workshops, 3 symposia, 9 tutorials, a poster session, and a tools exhibition. The selection of the workshops was organized by a Workshop Selection Committee, which consisted of the following experts: - Michel R. V. Chaudron, Leiden University, The Netherlands (Chair) - Jochen Kuster ], IBM Research Zurich, Switzerland - Henry Muccini, University of L'Aquila, Italy - Holger Giese, Hasso-Plattner-Institute, Germany - Hans Vangheluwe, McGill University, Canada Some workshops have been running for several years as MODELS satellite events, but each year some workshops end. Furthermore, there are always new developments, and hence there is roomfor new workshops. Therefore, the Wo- shop Selection Committee very much welcomes new proposals. The workshops enabled groups of participants to exchange recent and/or preliminary results, to conduct intensive discussions, or to coordinate e?orts between representatives of a technical community. They served as forums for lively discussion of innovative ideas, recent progress, or practical experience on model-driven engineering for speci?c aspects, speci?c problems, or doma- speci?c needs. The three symposia this year were: the Doctoral Symposium, the Educators' Symposium, and the Research Projects Symposium. The Doctoral Symposium provided speci?c support for PhD students to discuss their work and receive guidance for the completion of their dissertation research."