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arXiv : 0812.3716

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System and Information Sciences Notes 2, 1 (2007) 88

Context-aware adaptation for group communication support applications with dynamic architecture

Ismael Bouassida Rodriguez 1, Khalil DRIRA 1, Christophe Chassot 1, Mohamed Jmaiel 2

UseNet Project. Collaboration(s)

(07/09/2007)

In this paper, we propose a refinement-based adaptation approach for the architecture of distributed group communication support applications. Unlike most of previous works, our approach reaches implementable, context-aware and dynamically adaptable architectures. To model the context, we manage simultaneously four parameters that influence Qos provided by the application. These parameters are: the available bandwidth, the exchanged data communication priority, the energy level and the available memory for processing. These parameters make it possible to refine the choice between the various architectural configurations when passing from a given abstraction level to the lower level which implements it. Our approach allows the importance degree associated with each parameter to be adapted dynamically. To implement adaptation, we switch between the various configurations of the same level, and we modify the state of the entities of a given configuration when necessary. We adopt the direct and mediated Producer- Consumer architectural styles and graphs for architecture modelling. In order to validate our approach we elaborate a simulation model.

1 :	Laboratoire d'analyse et d'architecture des systèmes (LAAS)
	CNRS : UPR8001 – Université Paul Sabatier - Toulouse III – Institut National Polytechnique de Toulouse - INPT – Institut National des Sciences Appliquées de Toulouse
2 :	Unité de Recherche en développement et contrôle d'applications distribuées (REDCAD)
	Ecole Nationale d'Ingénieurs de SFAX

Équipe de recherche : OLC;ReDCAD

Domaine

:

Informatique/Génie logiciel

Mots Clés : Software architecture – Producer-Consumer style – Adaptation – Context-aware – Graphs.

hal-00345074, version 1

http://hal.archives-ouvertes.fr/hal-00345074

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Contributeur : Ismael Bouassida Rodriguez <>

Soumis le : Lundi 8 Décembre 2008, 12:04:03

Dernière modification le : Lundi 5 Janvier 2009, 15:08:00