The Software Composition Group is a research lab [http://www.iam.unibe.ch/~scg/] at the University of Bern interested in all aspects of building flexible software systems using object-oriented techniques, software components, and other technologies. We are especially interested in ReengineeringPatterns, and have been working on a handbook of such patterns in the context of the FAMOOS [http://www.iam.unibe.ch/~famoos/] project. ---- The Software Composition Group researches the application of object technology and related approaches to the development of flexible, open software systems.