Software Composition

The 8th International Conference on Software Composition, SC 2009, was held in Zu ¨rich, Switzerland, during July 2-3, 2009. Over the years SC has become an important and inspiring forum for researchers, practitioners, and students working in the broad ?eld of software composition. This topic area was further exploredbybothhigh-qualitypaperpresentationsaswellastwoexcellentinvited speakers. In all, 34 submissions underwent a full review process by the Program C- mittee (PC). Only 10 were accepted for publication and presentation at the conference. The published papers were selected according to rigorous criteria covering relevance for the venue; contribution and innovation; precisionand c- rectness; and presentation and clarity. Eachpaper received between three to ?ve reviews, depending on whether authors were PC members. We endeavored to make SC 2009 a venue that encouragesand helps outstanding papers to be p- lished. This implied generating discussion when opinions expressed by the PC membersdiverge. Threepapersthatconveyedimportantinnovationsorscienti?c progress did not quite reach the quality levels we aimed for and were therefore shepherded by a PC member. We would like to thank the PC members who helped with this extra task. The successof SC 2009 wasalso due to two worldwide recognizedresearchers who presented a keynote presentation. Paul Klint from the Centrum voor W- kunde en Informatica (CWI), Amsterdam, and St´ ephane Ducasse, from INRIA Lille Nord Europe. Their knowledge and experience undoubtedly bene?ted the audience. SC 2009 was one of the events that were co-located with TOOLS Europe 2009.