Welcome Message from the General Chair

On behalf of the organizing committee, it is my pleasure to welcome you to the 2006 International Conference on Dependable Systems and Networks (DSN-2006), the leading international conference on dependable computing since 1971, being held this year in the vibrant and historic city of Philadelphia, Pennsylvania, USA. Dependability is a vital attribute of computing and communication systems that pervade every aspect of our daily lives. As we are increasingly relying on reliable and secure functioning of these systems and networks, there have been increasing concerns about malicious exploitation of imperfect systems as well as the traditional concerns for inadvertent or accidental faults, errors, and failures. Additionally, communication networks are increasingly intertwined with national infrastructures such as the electrical power grid giving rise to the potential for more disastrous failures. The focus of this year\´s conference is on topics related to the question, "How can we make our systems and networks more dependable, reliable and trustworthy and thus make our businesses, homeland and society more safe and secure?" We have put together an excellent program of a keynote talk by a business and technology leader, research papers, industry sessions, panels, tutorials, workshops, fast abstracts, and a student forum. This volume contains the papers and presentations in the DCCS and IPDS tracks. The accompanying Supplemental volume contains the presentations from the workshops, the student forum and Fast Abstracts.