{"id":3791,"date":"2013-06-05T16:33:07","date_gmt":"2013-06-05T15:33:07","guid":{"rendered":"http:\/\/www.solucominsight.fr\/?p=3791"},"modified":"2015-01-21T09:54:20","modified_gmt":"2015-01-21T08:54:20","slug":"le-paas-une-solution-davenir-comment-franchir-le-pas","status":"publish","type":"post","link":"https:\/\/www.riskinsight-wavestone.com\/en\/2013\/06\/le-paas-une-solution-davenir-comment-franchir-le-pas\/","title":{"rendered":"Le PaaS, une solution d\u2019avenir. Comment franchir le pas ?"},"content":{"rendered":"<p><em>Comme nous l\u2019avions vu dans un <\/em><a href=\"http:\/\/www.solucominsight.fr\/2013\/01\/la-fabric-paas-coeur-de-la-proposition-de-valeur-du-paas-prive\/\"><em>pr\u00e9c\u00e9dent article<\/em><\/a><em>, en d\u00e9pit du <strong>foisonnement des offres de PaaS depuis 2010 et de l\u2019\u00e9mergence d\u2019initiatives de standardisation<\/strong>, le mod\u00e8le <\/em><strong><em>Platform-as-a-Service<\/em> peine aujourd\u2019hui \u00e0 percer chez les grands comptes en France<\/strong><em>. Selon l\u2019\u00e9tude Net MediaEurope (Juin 2012), l\u2019adoption du PaaS repr\u00e9sente uniquement\u00a0 <strong>23% des services \u00e9tudi\u00e9s ou utilis\u00e9s<\/strong> en entreprise sur l\u2019ann\u00e9e 2012 (contre 32% pour le mod\u00e8le IaaS et 75% pour le mod\u00e8le SaaS). <strong>Pourquoi cette adoption \u00e0 \u00ab\u00a0demi-teinte\u00a0\u00bb du mod\u00e8le PaaS<\/strong> en entreprise\u00a0? C\u2019est l\u2019objet de cet article. \u00a0<\/em><\/p>\n<h2>Des offres PaaS de 1\u00e8res g\u00e9n\u00e9rations \u00e0 faible maturit\u00e9\u2026<\/h2>\n<p>Les premi\u00e8res offres PaaS, lanc\u00e9es en 2010, constituaient une proposition souvent\u00a0:<\/p>\n<ul>\n<li><strong>Limit\u00e9e<\/strong>, avec un nombre restreint de langages de programmation et d\u2019environnements d\u2019ex\u00e9cution support\u00e9s.<\/li>\n<\/ul>\n<p style=\"padding-left: 30px;\"><em>En exemple, les premi\u00e8res versions du PaaS Heroku (de SalesForce) supportaient uniquement le langage Ruby; le PaaS Cloudfoundry.com (de Pivotal) supportait uniquement les langages Java et\u00a0 Ruby.<\/em><\/p>\n<ul>\n<li><strong>Intrusive<\/strong>, avec une adaptation \/ r\u00e9\u00e9criture de l\u2019application presque syst\u00e9matique.<\/li>\n<\/ul>\n<p style=\"padding-left: 30px;\"><em>Nous pouvons prendre l\u2019exemple d\u2019Amazon qui propose le service SGBD (syst\u00e8me de gestion de base de donn\u00e9es) sp\u00e9cifique\u00a0 SimpleDB ou Google qui propose le service propri\u00e9taire Google\u2019s Big Table sans oublier leur moteur d\u2019ex\u00e9cution propri\u00e9taire\u00a0: \u00ab\u00a0Google App Engine\u00a0\u00bb.<\/em><\/p>\n<ul>\n<li><strong>Verrouill\u00e9e<\/strong> (lock-in \u00e9diteur), avec un manifeste d\u00e9sint\u00e9r\u00eat pour l\u2019interop\u00e9rabilit\u00e9 et la portabilit\u00e9 entre les diff\u00e9rentes offres et une volont\u00e9 des \u00e9diteurs d\u2019imposer leurs propres standards.<\/li>\n<\/ul>\n<h2>\u2026 et ne couvrant que partiellement les besoins r\u00e9els des entreprises<\/h2>\n<p>Les PaaS de 1\u00e8res g\u00e9n\u00e9rations offraient des services peu adapt\u00e9s aux besoins complexes des entreprises. Au-del\u00e0 des limitations techniques (cit\u00e9es pr\u00e9c\u00e9demment), on a pu regretter que ces premiers PaaS :<\/p>\n<ul>\n<li>Proposent une offre de services incapables de <strong>r\u00e9pondre aux exigences et contraintes<\/strong> demand\u00e9es respectivement par les \u00e9tudes et la production et ce notamment en termes de SLAs (confidentialit\u00e9 des donn\u00e9es, tra\u00e7abilit\u00e9, etc.)<\/li>\n<\/ul>\n<ul>\n<li>Impliquent une <strong>r\u00e9versibilit\u00e9 complexe<\/strong> en cas de changement d\u2019offres ou d\u2019internalisation des applications (souvent d\u2019ailleurs pas propos\u00e9e par les fournisseurs de ces offres).<\/li>\n<\/ul>\n<ul>\n<li>R\u00e9partissent de mani\u00e8re floue les <strong>r\u00f4les et responsabilit\u00e9s<\/strong> entre le fournisseur de services et le client.<\/li>\n<\/ul>\n<ul>\n<li>Aient une <strong>pr\u00e9sence limit\u00e9e de support en France<\/strong>, pourtant n\u00e9cessaire \u00e0 l\u2019accompagnement des projets.<\/li>\n<\/ul>\n<h2>Un repositionnement efficace des fournisseurs PaaS<\/h2>\n<p>Face au manque d\u2019adh\u00e9sion des PaaS de 1\u00e8res g\u00e9n\u00e9rations, de nouvelles offres ont \u00e9merg\u00e9 et un repositionnement a \u00e9t\u00e9 op\u00e9r\u00e9 par les fournisseurs. <strong>La nouvelle g\u00e9n\u00e9ration s\u2019aligne enfin avec les vraies attentes des entreprises<\/strong>. Les initiatives en cours s\u2019orientent vers des offres\u00a0:<\/p>\n<ul>\n<li>Polyglottes (multi langages) et multi-plate-formes<\/li>\n<\/ul>\n<p style=\"padding-left: 30px;\"><em>Salesforce a par exemple enrichi son offre Heroku par le support de nombreux langages (Ruby, PHP, JavaScript, Java), ou encore Cloudfoundry.org supporte maintenant plusieurs langages et frameworks de d\u00e9veloppements\u00a0comme\u00a0 Java, .Net, Ruby, PHP, Python, Scala.<\/em><\/p>\n<ul>\n<li>Sp\u00e9cialis\u00e9es par cas d\u2019utilisation<\/li>\n<\/ul>\n<p style=\"padding-left: 30px;\">En exemple, Cloudbees propose deux offres compl\u00e9mentaires\u00a0:<\/p>\n<p style=\"padding-left: 60px;\"><em>&#8211; Une offre destin\u00e9e au <strong>d\u00e9veloppement<\/strong>, o\u00f9 l\u2019unit\u00e9 de facturation est le nombre de build op\u00e9r\u00e9.<br \/>\n&#8211; Une offre destin\u00e9e \u00e0 l\u2019<strong>ex\u00e9cution<\/strong>, o\u00f9 l\u2019unit\u00e9 de facturation est une configuration de la m\u00e9moire disponible pour l\u2019application<\/em><\/p>\n<ul>\n<li>Sensibles aux normes et standards (en cours de sp\u00e9cification)<\/li>\n<\/ul>\n<p style=\"padding-left: 30px;\"><em>Plusieurs initiatives de standardisation sont en cours sur le p\u00e9rim\u00e8tre PAAS. Nous pouvons noter en exemple\u00a0: CAMP, TOSCA ou encore Cloud Foundry Core.<\/em><\/p>\n<h2>Un virage \u00e0 prendre\u00a0?<\/h2>\n<p>Contrairement \u00e0 une <strong>adoption g\u00e9n\u00e9ralis\u00e9e des services SaaS<\/strong> (d\u00e9j\u00e0 utilis\u00e9s en entreprise depuis une dizaine d\u2019ann\u00e9es) et <strong>facilit\u00e9e<\/strong> pour les <strong>services IaaS<\/strong> (entreprises ayant g\u00e9n\u00e9ralement atteint un niveau de virtualisation assez pouss\u00e9 pour faciliter le passage vers le mod\u00e8le IaaS), <strong>les entreprises optent pour une attitude prudente vis-\u00e0-vis des services PaaS<\/strong>, privil\u00e9giant une <strong>strat\u00e9gie d\u2019adoption \u00e0 deux vitesses\u00a0:<\/strong><\/p>\n<ul>\n<li><strong>Une adoption imm\u00e9diate des offres PaaS pour des\u00a0:<\/strong><\/li>\n<\/ul>\n<p style=\"padding-left: 30px;\">&#8211; Applications non c\u0153ur de m\u00e9tier\u00a0;<br \/>\n&#8211; Applications non p\u00e9rennes (jetables)\u00a0;<br \/>\n&#8211; Prototypes\u00a0;<br \/>\n&#8211; Bacs \u00e0 sable innovants.<\/p>\n<p style=\"padding-left: 30px;\">L\u2019id\u00e9e est de favoriser des solutions non limitatives en termes de technologies.<\/p>\n<ul>\n<li><strong>Une adoption apr\u00e8s \u00e9tudes d\u2019opportunit\u00e9s, choix de solutions et prototypage pour les applications c\u0153ur de m\u00e9tier.<\/strong><\/li>\n<\/ul>\n<h2>R\u00e9f\u00e9rences<\/h2>\n<p>\u00c9tudes\u00a0: Net MediaEurope (Juin 2012),<\/p>\n<h3>Normes et standards<\/h3>\n<ul>\n<li>CAMP &#8211; <a href=\"https:\/\/www.oasis-open.org\/news\/pr\/camp-tc\">https:\/\/www.oasis-open.org\/news\/pr\/camp-tc<\/a><\/li>\n<li>TOSCA &#8211; <a href=\"https:\/\/www.oasis-open.org\/committees\/tc_home.php?wg_abbrev=tosca\">https:\/\/www.oasis-open.org\/committees\/tc_home.php?wg_abbrev=tosca<\/a><\/li>\n<li>CF Core &#8211; <a href=\"http:\/\/core.cloudfoundry.org\/definition\">http:\/\/core.cloudfoundry.org\/definition<\/a><\/li>\n<\/ul>\n<h3>Offres<\/h3>\n<ul>\n<li>Heroku &#8211; <a href=\"https:\/\/www.heroku.com\/\">https:\/\/www.heroku.com\/<\/a><\/li>\n<li>Cloud Foundry &#8211; <a href=\"http:\/\/www.cloudfoundry.com\/\">http:\/\/www.cloudfoundry.com\/<\/a><\/li>\n<li>SimpleDB &#8211; <a href=\"http:\/\/aws.amazon.com\/fr\/simpledb\/\">http:\/\/aws.amazon.com\/fr\/simpledb\/<\/a><\/li>\n<li>Google App Engine &#8211; <a href=\"https:\/\/appengine.google.com\/\">https:\/\/appengine.google.com\/<\/a><\/li>\n<li>Cloudbees &#8211;\u00a0 <a href=\"http:\/\/www.cloudbees.com\/#slide-2\" target=\"_blank\">http:\/\/www.cloudbees.com<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Comme nous l\u2019avions vu dans un pr\u00e9c\u00e9dent article, en d\u00e9pit du foisonnement des offres de PaaS depuis 2010 et de l\u2019\u00e9mergence d\u2019initiatives de standardisation, le mod\u00e8le Platform-as-a-Service peine aujourd\u2019hui \u00e0 percer chez les grands comptes en France. Selon l\u2019\u00e9tude Net&#8230;<\/p>\n","protected":false},"author":1269,"featured_media":3490,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"page-templates\/tmpl-one.php","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[35],"tags":[1163,1165,44,1162,90,858,1164],"coauthors":[],"class_list":["post-3791","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-strategie-projets-it","tag-adoption","tag-application","tag-cloud-computing","tag-normes-et-standards","tag-paas","tag-platform-as-a-service","tag-socle-dexecution"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Le PaaS, une solution d\u2019avenir. Comment franchir le pas ?<\/title>\n<meta name=\"description\" content=\"Comme nous l\u2019avions vu dans un pr\u00e9c\u00e9dent article (faire le lien), en d\u00e9pit du foisonnement des offres de PaaS depuis 2010 et de l\u2019\u00e9mergence d\u2019initiatives de standardisation, le mod\u00e8le Platform-as-a-Service peine aujourd\u2019hui \u00e0 percer chez les grands comptes en France. Selon l\u2019\u00e9tude Net MediaEurope (Juin 2012), l\u2019adoption du PaaS repr\u00e9sente uniquement 23% des services \u00e9tudi\u00e9s ou utilis\u00e9s en entreprise sur l\u2019ann\u00e9e 2012 (contre 32% pour le mod\u00e8le IaaS et 75% pour le mod\u00e8le SaaS). Pourquoi cette adoption \u00e0 \u00ab demi-teinte \u00bb du mod\u00e8le PaaS en entreprise ? 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Selon l\u2019\u00e9tude Net MediaEurope (Juin 2012), l\u2019adoption du PaaS repr\u00e9sente uniquement 23% des services \u00e9tudi\u00e9s ou utilis\u00e9s en entreprise sur l\u2019ann\u00e9e 2012 (contre 32% pour le mod\u00e8le IaaS et 75% pour le mod\u00e8le SaaS). Pourquoi cette adoption \u00e0 \u00ab demi-teinte \u00bb du mod\u00e8le PaaS en entreprise ? 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Selon l\u2019\u00e9tude Net MediaEurope (Juin 2012), l\u2019adoption du PaaS repr\u00e9sente uniquement 23% des services \u00e9tudi\u00e9s ou utilis\u00e9s en entreprise sur l\u2019ann\u00e9e 2012 (contre 32% pour le mod\u00e8le IaaS et 75% pour le mod\u00e8le SaaS). Pourquoi cette adoption \u00e0 \u00ab demi-teinte \u00bb du mod\u00e8le PaaS en entreprise ? C\u2019est l\u2019objet de cet article.","og_url":"https:\/\/www.riskinsight-wavestone.com\/2013\/06\/le-paas-une-solution-davenir-comment-franchir-le-pas\/","og_site_name":"RiskInsight","article_published_time":"2013-06-05T15:33:07+00:00","article_modified_time":"2015-01-21T08:54:20+00:00","og_image":[{"width":1690,"height":1124,"url":"https:\/\/www.riskinsight-wavestone.com\/wp-content\/uploads\/2013\/03\/balance-loi-Fotolia_33754935_M-copyright-Corgarashu.jpg","type":"image\/jpeg"}],"author":"zephSolucomBO","twitter_misc":{"Written by":"zephSolucomBO","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.riskinsight-wavestone.com\/2013\/06\/le-paas-une-solution-davenir-comment-franchir-le-pas\/#article","isPartOf":{"@id":"https:\/\/www.riskinsight-wavestone.com\/2013\/06\/le-paas-une-solution-davenir-comment-franchir-le-pas\/"},"author":{"name":"zephSolucomBO","@id":"https:\/\/www.riskinsight-wavestone.com\/en\/#\/schema\/person\/61c2fe74fad6b31442e1706ccacf3421"},"headline":"Le PaaS, une solution d\u2019avenir. 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Selon l\u2019\u00e9tude Net MediaEurope (Juin 2012), l\u2019adoption du PaaS repr\u00e9sente uniquement 23% des services \u00e9tudi\u00e9s ou utilis\u00e9s en entreprise sur l\u2019ann\u00e9e 2012 (contre 32% pour le mod\u00e8le IaaS et 75% pour le mod\u00e8le SaaS). Pourquoi cette adoption \u00e0 \u00ab demi-teinte \u00bb du mod\u00e8le PaaS en entreprise ? 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