Majoreconomicupheavalscanhavethesortofe?ectthatSchumpeterforesaw60 yearsagoascreativedestruction.Inscienceandtechnology,equivalentupheavals resultfromeitherscienti?crevolutions(asobservedbyKuhn)ortheintroduction of what Christensen calls disruptive technologies. And in software engineering, there has been no technology more disruptive than outsourcing. That it should so quickly reach maturity and an unparalleled scale is truly remarkable; that it should now be called to demonstrate its sustainability in the current ?nancial turmoil is the challenge that will prove whether and how it will endure. Early signs under even the bleak market conditions of the last 12 months are that it will not only survive, it will ?rmly establish its role across the world of business. Outsourcing throws into sharp focus the entire software engineering life- cle. Topics as diverse as requirements analysis, concurrency and model-checking need to ?nd a composite working partnership in software engineering practice. This con?uence arises from need, not dogma, and the solutions required are those that will have the right e?ect on the associated activities in the world of the application: e.g., reducing the time for a transaction or making the results of a complex analysis available in real-time. While the business of outsourcing continues to be studied, the engineering innovations that make it compelling are constantly changing. It is in this milieu that this series of conferences has placed itself.

The LASER Summer School is intended for professionals from industry (engineers and managers) as well as university researchers, including PhD students. Participants learn about the most important software technology advances from pioneers in the field. Since its inception in 2004, the LASER Summer School has focused on an important software engineering topic each year. This volume contains selected lecture notes from the 10th LASER Summer School on Software Engineering: Leading-Edge Software Engineering.

The LASER school is intended for professionals from the industry (engineers and managers) as well as university researchers, including PhD students. Participants learn about the most important software technology advances from the pioneers in the field. The school's focus is applied, although theory is welcome to establish solid foundations. The format of the school favors extensive interaction between participants and speakers. LASER 2011 is devoted to software verification tools. There have been great advances in the field of software verification in recent years. Today verification tools are being increasingly used not only by researchers, but by programming practitioners. The summer school will focus on several of the most prominent and practical of such tools from different areas of software verification (such as formal proofs, testing and model checking). During the school the participants will not only learn the principles behind the tools, but also get hands-on experience, trying the tools on real programs.

Software engineering, is widely recognized as one of today's most
exciting, stimulating, and profitable research areas, with a significant practical impact on the software industry and academia. The LASER school, held annually since 2004 on Elba Island, Italy, is intended for professionals from industry (engineers and managers) as well as university researchers, including PhD students.

This book contains selected lecture notes from the LASER summer schools 2008-2010, which focused on concurrency and correctness in 2008, software testing in 2009, and empirical software engineering, in 2010.