Panos PeriorellisPanos Periorellis is a computing scientist specializing in security and dependability matters for distributed computing and he has been at the forefront of the development of concepts such as systems of systems and virtual organizations. He currentlyholds a senior research position at the University of Newcastle upon Tyne in the UK, while at the same time is consulting on security issues for major IT companies. He has written numerous papers in the areas of Web services, and this book constitutes his first editorial effort. In addition, he acts as a reviewer for several journals and participates in various conference and workshop program committees. He maintains strong links with several industrial partners in telecommunications, transactional technologies, and software engineering. As a brief biographical note, he joined the Department of Computing Science at the University of Newcastle upon Tyne in June 2000 as a research associate, shortly after successfully completing his PhD in the area of enterprise modeling, under the supervision of Professor John Dobson. Working on several research projects, he carried out novel and innovative research into areas such as systems integration and security for distributed systems. He was promoted to senior member of academic staff in March 2004, and started researching into issues of security and trust for Web services. Since 1997, he has published over 40 papers on distributed computing, Web and Internet programming, peer-to-peer networks, organizational aspects of software engineering, complex systems, and natural language processing. His research interests remain in the areas of distributed computing, dependability, and complex systems. He holds a PhD in computing science, and an MSc and a BSc (Hons) in information systems. Read More Read Less