Constitutes the refereed proceedings of the 12th International SDL Forum, held in 2005. This book contains papers that deal with the various aspects of using system design languages. They are organized in topical sections on language issues, engineering issues, message sequence charts, applications and tools, model driven architecture, and more.

The papers in this volume aim at obtaining a common understanding of the challenging research questions in web applications comprising web information systems, web services, and web interoperability; obtaining a common understanding of verification needs in web applications; achieving a common understanding of the available rigorous approaches to system development, and the cases in which they have succeeded; identifying how rigorous software engineering methods can be exploited to develop suitable web applications; and at developing a European-scale research agenda combining theory, methods...

The papers in this volume aim at obtaining a common understanding of the challenging research questions in web applications comprising web information systems, web services, and web interoperability;