{"id":1313,"date":"2009-05-14T20:32:58","date_gmt":"2009-05-14T19:32:58","guid":{"rendered":"http:\/\/www.ziserman.com\/blog\/?p=1313"},"modified":"2009-05-15T07:56:57","modified_gmt":"2009-05-15T06:56:57","slug":"vous-reprendrez-bien-une-petite-tranche-de-systeme-dinformation","status":"publish","type":"post","link":"https:\/\/www.ziserman.com\/blog\/2009\/05\/14\/vous-reprendrez-bien-une-petite-tranche-de-systeme-dinformation\/","title":{"rendered":"Vous reprendrez bien une petite tranche de syst\u00e8me d&rsquo;information ?"},"content":{"rendered":"<p>Le syst\u00e8me d&rsquo;information, c&rsquo;est l&rsquo;ensemble du syst\u00e8me informatique, qui tourne dans une entreprise.<\/p>\n<p>Pour une entreprise qui fait du e-commerce, c&rsquo;est bien s\u00fbr un site e-commerce, avec son (ses ?) back offices.<\/p>\n<p>Mais c&rsquo;est \u00e9galement tous les autres syst\u00e8mes, plus ou moins anciens, plus ou moins interconnect\u00e9s : ERP, CRM, &#8230;<\/p>\n<p>Toutes les entreprises ont une histoire, et <strong>le<\/strong><span><strong>\u00a0syst\u00e8me d&rsquo;information de l&rsquo;entreprise est une trace de cette histoire<\/strong>, <strong>souvent non lin\u00e9aire<\/strong><\/span>\u00a0;).<\/p>\n<p>Alors voil\u00e0, le contexte \u00e9volue rapidement, les techno aussi, et\u00a0<span><strong>l&rsquo;entreprise doit faire face \u00e0 de nouveaux d\u00e9fis<\/strong><\/span>.<\/p>\n<p><span><strong>Le syst\u00e8me d&rsquo;information devient un boulet, qui freine l&rsquo;entreprise<\/strong><\/span>.<\/p>\n<p>Il faut donc\u00a0<span><strong>repenser le syst\u00e8me<\/strong><\/span>.<\/p>\n<p>Certains (surtout les \u00e9diteurs \ud83d\ude09 ) vous proposeront de tout changer&#8230;<\/p>\n<p>Pour ma part, je pense qu&rsquo;une telle op\u00e9ration est en g\u00e9n\u00e9ral tr\u00e8s risqu\u00e9. Je pr\u00e9f\u00e8re travailler sur\u00a0<span>un plan d&rsquo;\u00e9volution \u00ab\u00a0en tranche\u00a0\u00bb<\/span>\u00a0du syst\u00e8me d&rsquo;information.<\/p>\n<p>Apr\u00e8s analyse fine du syst\u00e8me, l&rsquo;id\u00e9e est d&rsquo;identifier des blocs fonctionnels, et de proc\u00e9der \u00e0 des \u00e9volutions partielles, morceau apr\u00e8s morceau.<\/p>\n<p>Cela parait simple comme \u00e7a&#8230; \u00e7a ne l&rsquo;est pas forc\u00e9ment !<\/p>\n<p>Comme <a title=\"Aller sur le billet pr\u00e9c\u00e9dent qui parle de l'importance des traits dans un syst\u00e8me d'information\" href=\"http:\/\/www.ziserman.com\/blog\/2009\/05\/04\/systeme-dinformation-e-commerce-de-limportance-des-traits\/\" target=\"_blank\">je l&rsquo;ai d\u00e9j\u00e0 \u00e9voqu\u00e9 dans ce billet, les traits d&rsquo;un sch\u00e9ma sont tr\u00e8s important<\/a>&#8230;<\/p>\n<p>Pour dire les choses\u00a0diff\u00e9remment, un point cl\u00e9 va \u00eatre le travail sur les \u00e9changes entre les modules.<\/p>\n<p>Il s&rsquo;agit bien de\u00a0<span><strong>faire \u00e9voluer le syst\u00e8me d&rsquo;information vers un syst\u00e8me plus performant<\/strong><\/span>.<\/p>\n<p>Il faut donc\u00a0<span><strong>repenser les \u00e9changes entre les modules du syst\u00e8me<\/strong><\/span>.<\/p>\n<p>Je dois dire que c&rsquo;est un truc qu&rsquo;on j&rsquo;adore faire chez <a title=\"Aller sur la page d'accueil d'Araok, soci\u00e9t\u00e9 de conseil en e-commerce\" href=\"http:\/\/www.araok.fr\" target=\"_blank\">Araok!<\/a>&#8230;<\/p>\n<p>Alors, il est comment votre syst\u00e8me d&rsquo;information ?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le syst\u00e8me d&rsquo;information, c&rsquo;est l&rsquo;ensemble du syst\u00e8me informatique, qui tourne dans une entreprise. Pour une entreprise qui fait du e-commerce, c&rsquo;est bien s\u00fbr un site e-commerce, avec son (ses ?) back offices. Mais c&rsquo;est \u00e9galement tous les autres syst\u00e8mes, plus ou moins anciens, plus ou moins interconnect\u00e9s : ERP, CRM, &#8230; Toutes les entreprises ont [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[2],"tags":[379,371,139,155],"class_list":["post-1313","post","type-post","status-publish","format-standard","hentry","category-e-commerce","tag-araok","tag-e-commerce","tag-systeme-dinformation","tag-urbanisme-du-si"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vous reprendrez bien une petite tranche de syst\u00e8me d&#039;information ? - Ziserman.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ziserman.com\/blog\/2009\/05\/14\/vous-reprendrez-bien-une-petite-tranche-de-systeme-dinformation\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vous reprendrez bien une petite tranche de syst\u00e8me d&#039;information ? - Ziserman.com\" \/>\n<meta property=\"og:description\" content=\"Le syst\u00e8me d&rsquo;information, c&rsquo;est l&rsquo;ensemble du syst\u00e8me informatique, qui tourne dans une entreprise. Pour une entreprise qui fait du e-commerce, c&rsquo;est bien s\u00fbr un site e-commerce, avec son (ses ?) back offices. 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