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A Holistic Approach for Pervasive Computing Environments. Sergio Maffioletti, Soraya Kouadris M. and Bèat Hirsbrunner Pervasive and Artificial Intelligence Research group Department of Informatics University of Fribourg, Switzerland http://diuf.unifr.ch/pai. Table of content.

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A Holistic Approach for

Pervasive Computing Environments

Sergio Maffioletti, Soraya Kouadris M. and Bèat Hirsbrunner

Pervasive and Artificial Intelligence Research group

Department of Informatics

University of Fribourg, Switzerland

http://diuf.unifr.ch/pai


Table of content
Table of content

  • UbiDev Architectural Model

  • Ubiquitous Messaging System: an Application Scenario

  • UbiDev: the Architecture

    • - Resources

  • - Classification

  • - Services

  • - Coordination

    • - Application ontology

  • Conclusions


  • Ubidev architectural model
    UbiDev Architectural model

    • Classical approaches

      • face heterogeneity of

      • Physical and Service dimension

      • (Jini, E-speak,…)

      • service perspective design model

  • UbiDev additional contribution

    • homogeneous coordination scenario


  • Ums a ubidev application scenario
    UMS: a UbiDev Application Scenario

    Application

    Coordination

    Service

    Classification

    Physical Entities



    Resources and adapters
    Resources and Adapters

    • Adapter is a virtual representer of a resource inside a UbiDev environment.

    • Adapter defines basic access mechanisms for exchanging data in a seamless way.

    • Particularly suitable for integrating handheld devices because it embodies the specific resource access information.


    Classification
    Classification

    • UbiDev classifies physical resources tagging them with concepts from

    • the application ontology. The classifier implicitly gives the meaning

    • of these concepts.

    • Application and services agree with this semantic so the interoperability

    • is guarantee.


    Service
    Service

    • Services are seen as a transformation between an input resource yielding

    • an output resource.

    • Their description is based on the application ontology.



    Coordination
    Coordination

    Coordination Manager can compose existing services in order to solve user query. The Result is presented at application as a uniform composite service document_to_display.



    Conclusions
    Conclusions

    • Unified approach for pervasive computing environments

    • Automatic configuration of application

    • Service Oriented Paradigm based on a coordination space

    • Functionality oriented application design

    • Easy to reuse existing modules (classifiers, adapters,…)


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