To stay competitive in a rapidly changing market, software producing organisations must solve serious problems. They must reduce time-to-market, enhance quality, increase diversity to fit needs, enhance standardisation and interoperability, and exploit support technologies. Software evolution and reuse are key solutions to achieve these goals. This book is the first to assemble and analyse reports from real-world applications of advanced techniques for software evolution and reuse in various companies working in different domains and using diverse software development methodologies. Three typical scenarios are described that highlight the approaches recommended, and lessons learned from experience are presented. The material is invaluable for software managers and consultants.