a holistic approach for pervasive computing environments

Communication Networks and Distributed Systems Modelling and Simulation Conference (CNDS'04)

A Holistic Approach for Pervasive Computing Environments Sergio Maffioletti, Soraya Kouadris M. and Bèat Hirsbrunner http://diuf.unifr.ch/pai

A Holistic Approach for Pervasive Computing Environments

Sergio Maffioletti, Soraya Kouadris M. and Bèat Hirsbrunner

Pervasive and Artificial Intelligence Research groupDepartment of Informatics

University of Fribourg, Switzerland

http://diuf.unifr.ch/pai



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

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

Application

Coordination

Classification

Physical Entities

Service



UbiDev: the Architecture



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

• UbiDev classifies physical resources tagging them with concepts from the application ontology. The classifier implicitly gives the meaningof these concepts.

• Application and services agree with this semantic so the interoperability is guarantee.



Service

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

• Their description is based on the application ontology.



Service and capsule



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.



Application Ontology



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,…)

a holistic approach for pervasive computing environments

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