The 4^th Workshop on
Adaptive and Reflective Middleware

Most of the middleware used and developed today is characterised by its inflexibility in adapting to different target environments and application areas. This lack of adaptability usually comes from the fact that middleware is traditionally built as a single monolithic and fixed entity. However, in application domains such as mobile computing, distributed multimedia, and distributed real-time and embedded (DRE) systems, having the ability to reconfigure the middleware in order to optimise the resource usage and/or provide the desired quality of service (QoS) becomes a key feature. Applying reflective techniques to middleware in order to "open up" its implementation, is one of the promising ways to provide a greater degree of configurability and dynamic adaptability, at the same time as it enables the usual benefits of language and system independency of typical middleware approaches.

Following the success of the past three workshops, ARM2005 aims at providing researchers with a leading edge view on the state of the art in adaptive and reflective middleware, and with the challenging problems that remain unsolved. This workshop will permit researchers from around the world investigating middleware adaptation to interact and share ideas. It will provide a forum to further the application of adaptive middleware techniques to a variety of domains, such as medicine, command and control, homeland security, entertainment and commerce.

All workshop papers will be published via ACM's Digital Library as part of their "ACM International Conference Proceeding Series" (AICPS). Furthermore, by combining both the attendees voting and the referees' rankings, The following two papers are selected and extended version of the papers are under reviewed for publishing in the .IEEE Distributed Systems Online.

• Ruediger Kapitza, Michael Kirstein, Holger Schmidt, and Franz J. Hauck, "FORMI: An RMI Extension for Adaptive Applications"
• Tom Ritter, Rudolf Schreiner and Ulrich Lang, "Realizing Security Policies with Container Portable Interceptors"