77documents trouvés
Multi-level modeling for adaptive collaborative ubiquitous systems
I.BOUASSIDA, G.SANCHO, S.TAZI, T.VILLEMUR, K.DRIRA, C.CHASSOT, M.JMAIEL
ReDCAD Laboratory, OLC
Rapport LAAS N°09067, Mars 2009, 15p.
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Mots-Clés / Keywords
Ubiquitous computing; Collaboration; Multi-level modelling; Context awareness;
Application and network QoS mapping using an ontology-based approach during service negotiation
A.COLOMBO PRUDENCIO, R.WILLRICH, M.DIAZ, S.TAZI
OLC, INE-UFSC
Rapport LAAS N°09056, Mars 2009, 8p.
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Mots-Clés / Keywords
Quality of service; Service level agreements; QoS specification; Semantics; Ontology;
Specification of smart usage demonstrator
P.ROSSIGNOL, C.SAUVIGNAC, P.MEURICE, J.M.TRAN, P.MASERES, B.TESNIERE, S.RAMOS, V.BAUDIN, I.BOUASSIDA, K.DRIRA, G.SANCHO, S.TAZI, T.VILLEMUR, D.PIREZ, Y.LOPEZ
BULL, 2I, OLC, THALES Paris
Rapport de Contrat : UseNet ITEA2 06004, Février 2009, 41p. , N° 09014
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116334Initial framework specification of M2M service network
J.LATVAKOSKI, S.TAZI, T.VILLEMUR, P.ROSSIGNOL, C.SAUVIGNAC, J.HOEBEKE, P.DEDECKER, I.MOERMAN, F.MARTINEZ, D.PIREZ, A.DECKERS, J.MOREELS, P.DOBBELAERE
VTT, OLC, BULL, IBBT, Ikerlan, THALES Paris, ALCATEL
Rapport de Contrat : Contrat UseNet ITEA2 06004, Janvier 2009, 123p. , N° 09013
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116324Semantic enabled framework for SLA monitoring
K.FAKHFAKH, S.TAZI, K.DRIRA, T.CHAARI, M.JMAIEL
ReDCAD Laboratory, OLC
Revue Scientifique : International Journal on Advances in Software, Vol.2, N°1, pp.36-46, Janvier 2009 , N° 09534
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Abstract
Defining clear Quality of Service agreements between service providers and consumers is particularly important for the successful deployment of service-oriented architectures. The related challenges include correctly elaborating and monitoring QoS-aware contracts (called SLA: Service Level Agreement) to detect and handle their violations. In this paper, first, we study and compare existing SLA-related models. To address the insufficiencies of these models, we propose a complete, generic and semantically richer ontology-based model of Service Level Agreements. In this model, we use the SWRL language (Semantic Web Rule Language) to express SLA obligations. This language facilitates the SLA monitoring process and the eventual action triggering in case of violations. In a second step, we use our SLA model to automatically generate semantic-enabled QoS obligations monitors. The main algorithms that perform the monitoring process are presented in this article. We implement these algorithms in an automatically generated service-oriented architecture. Finally, we believe that this work is a step ahead to the complete automation of SLA management process.
Mots-Clés / Keywords
Service level agreements; Ontology-based model; SLA monitoring; QoS contracts;
Service level agreement modeling and monitoring using ontologies
K.FAKHFAKH, T.CHAARI, S.TAZI, K.DRIRA, M.JMAIEL
OLC, ReDCAD Laboratory
Manifestation avec acte : Journées Francophones sur les Ontologies (JFO), Lyon (France), 1-3 Décembre 2008, pp.106-111 , N° 08529
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Mots-Clés / Keywords
Service level agreements; Monitoring; Quality of service; Ontology; Service oriented architecture;
Uses cases components
P.ROSSIGNOL, C.SAUVIGNAC, P.MEURICE, J.M.TRAN, P.MASERES, B.TESNIERE, S.RAMOS, V.BAUDIN, I.BOUASSIDA, T.CHAARI, K.DRIRA, G.SANCHO, S.TAZI, T.VILLEMUR, D.PIREZ, Y.LOPEZ
BULL, 2I, OLC, THALES Paris
Rapport de Contrat : Contrat UseNet ITEA2 06004, Octobre 2008, 36p. , N° 08544
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115300Interactive Technology and smart education
S.TAZI
OLC
Ouvrage (éditeur) : Vol.5, N°3, Octobre 2008, pp.143-204 , N° 08507
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115170A semantic-driven auto-adaptive architecture for collaborative ubiquitous systems
G.SANCHO, S.TAZI, T.VILLEMUR
OLC
Manifestation avec acte : 5th International Conference on Soft Computing as Transdisciplinary Science and Technology (CSTST'2008), Cergy Pontoise (France), Octobre 2008, pp.650-655 , N° 08119
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Abstract
Ubiquitous computing environments are complex systems containing a great amount of heterogeneous devices and services available to users. Both user needs and services offered to them evolve very fast. This evolution requires the adaptation of the software architectures that support user activities. Moreover, such adaptation must be based on application semantics in order to better respond to user needs in any situation. This paper presents a work in progress that aims to build an architecture enabling the development of adaptive collaborative applications in ubiquitous computing environments. An ontology model, containing generic collaboration knowledge as well as domain-specific knowledge, is proposed in order to enable architecture adaptation and to support spontaneous and implicit sessions inside groups of humans and devices.
Mots-Clés / Keywords
Ontologies; Auto-adaptation; Meta Model; CSCW;
A comprehensive ontology-based approach for SLA obligations monitoring
K.FAKHFAKH, T.CHAARI, S.TAZI, K.DRIRA, M.JMAIEL
ReDCAD Laboratory, OLC
Manifestation avec acte : 2nd International Conference on Advanced Engineering Computing and Applications in Sciences (ADVCOMP 2008), Valence (Espagne), 29 Septembre - 4 Octobre 2008, pp.217-222 , N° 08363
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