{"id":538,"date":"2015-05-04T10:12:00","date_gmt":"2015-05-04T08:12:00","guid":{"rendered":"https:\/\/samovar2022.int-evry.fr\/index.php\/2015\/05\/04\/une-architecture-de-cloud-broker-basee-sur-la-semantique-pour-loptimisation-de-la-satisfaction-des-utilisateurs\/"},"modified":"2020-09-04T18:46:35","modified_gmt":"2020-09-04T16:46:35","slug":"une-architecture-de-cloud-broker-basee-sur-la-semantique-pour-loptimisation-de-la-satisfaction-des-utilisateurs","status":"publish","type":"post","link":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/2015\/05\/04\/une-architecture-de-cloud-broker-basee-sur-la-semantique-pour-loptimisation-de-la-satisfaction-des-utilisateurs\/","title":{"rendered":"\u00a0\u00bb Une architecture de Cloud Broker bas\u00e9e sur la s\u00e9mantique pour l\u2019optimisation de la satisfaction des utilisateurs \u00ab\u00a0"},"content":{"rendered":"

Mme In\u00e8s FAKHFAKH<\/strong>
\nsoutenance de th\u00e8se de doctorat intitul\u00e9e \u00a0\u00bb Une architecture de Cloud Broker bas\u00e9e sur la s\u00e9mantique pour l\u2019optimisation de la satisfaction des utilisateurs \u00ab\u00a0. Cette th\u00e8se a \u00e9t\u00e9 r\u00e9alis\u00e9e sous la direction de M. Djamal ZEGHLACHE. Elle aura lieu le 07\/05\/2015 \u00e0 13h30 – Amphi 11 \u00e0 T\u00e9l\u00e9com SudParis, 9 rue Charles Fourier, 91000 Evry. <\/p>\n

Le jury sera compos\u00e9 de :<\/strong><\/p>\n

Mme. Lynda MOKDAD, Professeur \u00e0 la Facult\u00e9 des Sciences et Technologie, Universit\u00e9 Paris 12, Val de Marne \u2013 Rapporteur <\/p>\n

M. Yacine GHAMRI DOUDANE, Professeur \u00e0 l\u2019Universit\u00e9 de La Rochelle \u2013 Rapporteur
\nMme V\u00e9ronique VEQUE, Professeur \u00e0 l\u2019Universit\u00e9 Paris-Sud \u2013 Examinateur
\nM. Pierre SENS, Professeur \u00e0 l\u2019Universit\u00e9 Paris 6 \u2013 Examinateur
\nMme. Amel BOUZEGHOUB, Professeur \u00e0 T\u00e9l\u00e9com SudParis \u2013 Examinateur
\nM. Djamal ZEGHLACHE, Professeur \u00e0 T\u00e9l\u00e9com SudParis \u2013 Directeur de th\u00e8se<\/p>\n

R\u00e9sum\u00e9 de th\u00e8se :<\/strong><\/p>\n

Le Cloud Computing est un nouveau mod\u00e8le \u00e9conomique h\u00e9bergeant les applications de la technologie de l\u2019information. Le passage au Cloud devient un enjeu important des entreprises pour des raisons \u00e9conomiques. La nature dynamique et la complexit\u00e9 croissante des architectures de Cloud impliquent plusieurs d\u00e9fis de gestion. Dans ce travail, nous nous int\u00e9ressons \u00e0 la gestion des contrats SLA. Vu le manque de standardisation, chaque fournisseur de service d\u00e9crit les contrats SLA avec son propre langage, ce qui laisse l’utilisateur perplexe concernant le choix de son fournisseur de services.<\/p>\n

Dans ce travail, nous proposons une architecture de Cloud Broker permettant d\u2019\u00e9tablir et de n\u00e9gocier les contrats SLA entre les fournisseurs et les consommateurs du Cloud. L\u2019objectif de cette architecture est d\u2019aider l\u2019utilisateur \u00e0 trouver le meilleur fournisseur en utilisant une m\u00e9thode multi-crit\u00e8re. Cette m\u00e9thode consid\u00e8re chaque crit\u00e8re comme une fonction d\u2019utilit\u00e9 \u00e0 int\u00e9grer dans une super-fonction d\u2019utilit\u00e9. Nous proposons d\u2019illustrer chaque fonction d\u2019utilit\u00e9 par une courbe sp\u00e9cifique permettant de mod\u00e9liser le crit\u00e8re de choix. Nous avons pris en compte la plupart des crit\u00e8res qui contribuent dans le choix du meilleur service et de les classer en crit\u00e8res fonctionnels et crit\u00e8res non fonctionnels.<\/p>\n

Les contrats SLA \u00e9tablis par notre Broker sont formalis\u00e9s sous forme d\u2019ontologies qui permettent de masquer l’h\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9 et d\u2019assurer l’interop\u00e9rabilit\u00e9 entre les acteurs du Cloud. En outre, l\u2019utilisation des r\u00e8gles d’inf\u00e9rence nous a permis de d\u00e9tecter les violations dans le contrat SLA \u00e9tabli et de garantir ainsi le respect de la satisfaction client dans le temps.<\/p>\n

Abstract :<\/strong><\/p>\n

Cloud Computing is a dynamic new technology that has huge potentials in enterprises and markets. The dynamicity and the increasing complexity of Cloud architectures involve several management challenges. In this work, we are interested in Service Level Agreement (SLA) management.<\/p>\n

Actually, there is no standard to express Cloud SLA, so, providers describe their SLAs in different manners and different languages, which leave the user puzzled about the choice of its Cloud provider.<\/p>\n

To overcome these problems, we introduce a Cloud Broker Architecture that aims to assist users in establishing and negotiating SLA contracts and to help them in finding the best provider that satisfies their service level expectations. Our Broker SLA contracts are formalized as OWL ontologies as they allow hiding the heterogeneity in the distributed Cloud environment and enabling interoperability between Cloud actors. Besides, by combining our ontology with our proposed inference rules, we contribute to detect violations in the SLA contract assuring thereby the sustainability of the user satisfaction. Based on their requirements, our Cloud Broker assists users in selecting the right provider using a multi attribute utility theory method. This method is based on utility functions representing the user satisfaction degree. To obtain accurate results, we have modelled both functional and non functional attributes utilities. We have used personalized utilities for each criterion under negotiation so that our cloud broker satisfies the best consumer requirements from functional and non functional point of view.<\/p>\n","protected":false},"excerpt":{"rendered":"

Mme In\u00e8s FAKHFAKH soutenance de th\u00e8se de doctorat intitul\u00e9e \u00a0\u00bb Une architecture de Cloud Broker bas\u00e9e sur la s\u00e9mantique pour l\u2019optimisation de la satisfaction des utilisateurs \u00ab\u00a0. Cette th\u00e8se a \u00e9t\u00e9 r\u00e9alis\u00e9e sous la direction de M. Djamal ZEGHLACHE. Elle aura lieu le 07\/05\/2015 \u00e0 13h30 – Amphi 11 \u00e0 T\u00e9l\u00e9com SudParis, 9 rue Charles […]<\/p>\n","protected":false},"author":1,"featured_media":537,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[376],"tags":[],"class_list":["post-538","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-theses-2015-fr","entry","has-media"],"_links":{"self":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/comments?post=538"}],"version-history":[{"count":1,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/538\/revisions"}],"predecessor-version":[{"id":1779,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/538\/revisions\/1779"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/media\/537"}],"wp:attachment":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/media?parent=538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/categories?post=538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/tags?post=538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}