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Software applications executing in highly dynamic environments are faced with the challenge of frequent and usually unpredictable changes in their execution environment. In order to cope with this challenge effectively, the applications need to adapt to these changes dynamically. CASA (Contract-based Adaptive Software Architecture) provides a framework for(More)
A major advantage offered by Web services technologies is the ability to dynamically discover and invoke services. This ability is particularly important for operations of many applications executing in open dynamic environments. The QoS properties of the required and provided services play a significant role in dynamic discovery and invocation of services(More)
— In today's world of highly dynamic computing environments , autonomic applications are the need of the hour. By an autonomic application, we mean an application that is able to adapt to changes in its execution environment dynamically and transparently. CASA (Contract-based Adaptive Software Architecture) provides a framework for enabling the development(More)
Self-organized mobile networks present a challenging environment for the execution of software applications, due to their dynamic topologies and consistently changing resource conditions. In view of the above, a desirable property for software applications to be run over these networks is their ability to dynamically adapt to changing execution(More)
With the recent advent and widespread use of smart mobile devices, the flexibility and versatility offered by Service Oriented Architecture's (SOA) makes it an ideal approach to use in the rapidly changing mobile environment. However, the mobile setting presents a set of new challenges that service discovery methods developed for non-mobile environments(More)
Industry and academia are exploring ways to exploit the services paradigm to assist in the challenges of software self-management. In this paper we present a novel approach which aims to bring these two fields closer by specifying the requirements and capabilities within a UML2 model architecture style and illustrating how these model elements are used to(More)
tattet hierdurch die Drucklegung der vorliegenden Dissertation, ohne damit zu den darin ausge-sprochenen Anschauungen Stellung zu nehmen. Acknowledgements I would like to thank my supervisor, Prof. Dr. Martin Glinz for his many valuable instructions and constant support during this research. Under his careful guidance over the last four and half years, I(More)