A Graph-Based Approach for Contextual Service Loading in Pervasive Environments

  • Amira Ben Hamida
  • Frédéric Le Mouël
  • Stéphane Frénot
  • Mohamed Ben Ahmed
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5331)

Abstract

The pervasive computing paradigm promises great abilities whenever and wherever a user goes. However, as people are shifting from the desktop to more resource-constrained devices, issues due to scarce resources may appear preventing from the use of the available services and applications.

In this paper, we consider the adaptive deployment as a mainstream solution to suit service-oriented applications to different context constraints such as the users requirements, the hosts resources, the services properties and the surrounding environments.

We put forward a graph-based deployment approach for service-based applications so as to make these applications adaptable to the runtime contextual constraints. We introduce the AxSeL architecture, A conteXtual Service Loader in which services and their dependencies are represented as a bidimensional graph. The dependency graph is then coloured through a process taking into account the devices, services and users constraints. This process aims to choose to load or not a service according to its execution context.

A prototype based on Java and OSGi technologies is implemented in order to demonstrate and evaluate our approach.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Amira Ben Hamida
    • 1
  • Frédéric Le Mouël
    • 1
  • Stéphane Frénot
    • 1
  • Mohamed Ben Ahmed
    • 1
  1. 1.INRIA Amazones, CITI Lab.INSA LyonVilleurbanne CedexFrance

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