Florida Atlantic University
Web services first appeared around the year 2000 in an effort to improve interoperability between applications, and both IBM and Microsoft adopted them as part of their main strategic objectives. The authors have collected five papers describing different aspects of web services and cloud computing. Cloud computing is the next stage of application interoperability and it is a logical extension of web services, both approaches being a variety of Service-Oriented Architecture. The papers cover security, migration, certification, and application development. Together, these papers provide a useful panorama of some of the issues of these two technologies.