Dependable Information Service for Distributed Systems

  • Jan Kwiatkowski
  • Piotr Karwaczyński
  • Marcin Pawlik
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3911)


A notion of a Dependable Information Service (DIS) is advocated as the means for applications in large scale distributed systems to select service instances meeting their requirements, functional as well as non-functional. Applications that need to provide certain correctness of results to the end user can only do so by requiring the services they use to guarantee particular level of correctness. When no such guarantees can be made, applications cannot provide the service and thus become unavailable. A system model is proposed to let applications temporarily accept lower correctness of used services in order to increase the availability caused by application accepted tradeoff. The proposed Dependable Information Service provides applications with a set of services appropriate for their demands and informs them of changes that can affect their quality level.


Service Provider Service Requester Discovery Service Service Instance Satisfaction Function 
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

  • Jan Kwiatkowski
    • 1
  • Piotr Karwaczyński
    • 1
  • Marcin Pawlik
    • 1
  1. 1.Institute of Applied InformaticsWrocław University of TechnologyWrocławPoland

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