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Self-Adaptive Systems: A Middleware Managed Approach

  • Eli Gjørven
  • Frank Eliassen
  • Ketil Lund
  • Viktor S. Wold Eide
  • Richard Staehli
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3996)

Abstract

Recent works on self-adaptivity use a middleware-based approach where the adaptation mechanisms and meta-level information are separated and externalized from the application code. Current solutions generally target individual life-cycle phases of an application in isolation, preventing easy integration of design-time and run-time adaptability. Integration is needed in order to support the introduction of new adaptive behavior during run-time. Self-adapting systems therefore need to support both planning, instantiation and maintenance of applications throughout their life-time.

In this paper we propose middleware managed adaptation, in which services are specified by their behavior, and planned, instantiated and maintained by middleware services in such a way that the behavioral requirements are satisfied throughout the service life-time. Central to this approach is mirror-based reflection, which supports introspection and intercession on an application, or any service, through all the phases of its life-cycle, including pre-runtime. The mirror of a service may contain information about its implementation, including the developer’s knowledge about how this implementation will perform in different contexts. By making this knowledge available to the middleware, we facilitate the implementation of a wide range of self-adaptive behaviors.

Keywords

Service Implementation Client Device Adaptable Service Service Mirror Personal Medium Server 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Eli Gjørven
    • 1
  • Frank Eliassen
    • 1
    • 2
  • Ketil Lund
    • 1
  • Viktor S. Wold Eide
    • 1
  • Richard Staehli
    • 1
  1. 1.Simula Research LaboratoryLysakerNorway
  2. 2.Dept. of InformaticsUniversity of OsloBlindern, OsloNorway

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