{"id":2551,"date":"2012-11-27T10:14:26","date_gmt":"2012-11-27T09:14:26","guid":{"rendered":"http:\/\/www.solucominsight.fr\/?p=2551"},"modified":"2015-01-21T09:56:08","modified_gmt":"2015-01-21T08:56:08","slug":"optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero","status":"publish","type":"post","link":"https:\/\/www.riskinsight-wavestone.com\/en\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/","title":{"rendered":"Optimisation des co\u00fbts de la DSI : et si on reprenait tout \u00e0 z\u00e9ro ?"},"content":{"rendered":"<p>Dans un contexte \u00e9conomique tendu, de nombreuses entreprises s&#8217;engagent dans des programmes de r\u00e9duction et d&#8217;optimisation des co\u00fbts. \u00c0 l&#8217;inverse des m\u00e9thodes classiques, la m\u00e9thode ZBB (Zero Based Budgeting) permet d&#8217;identifier des leviers concrets d&#8217;optimisation sans tenir compte du budget existant. Quels sont les principes et bonnes pratiques de cette m\u00e9thode ? Quels r\u00e9sultats en obtient-on ?<\/p>\n<h2>Se baser sur une analyse exhaustive hors budget<\/h2>\n<p>Ne jamais faire r\u00e9f\u00e9rence au budget pr\u00e9c\u00e9dent. S&#8217;engager \u00e0 construire le suivant autour des conclusions tir\u00e9es de l&#8217;analyse. S&#8217;assurer de couvrir l&#8217;ensemble du p\u00e9rim\u00e8tre et des fonctions adress\u00e9es. Voici les partis pris de la m\u00e9thodologie ZBB.<\/p>\n<p>A l\u2019inverse des processus traditionnels de construction d\u2019un budget incr\u00e9mental, les entreprises menant un programme ZBB s\u2019attachent \u00e0 l\u2019analyse exhaustive de leurs co\u00fbts et besoins. Cette analyse de l\u2019existant leur permet d\u2019identifier les leviers qu\u2019elles pourront mettre en place pour r\u00e9duire leurs co\u00fbts.<\/p>\n<p>Par la suite, la m\u00e9thode consiste en l\u2019\u00e9laboration de plans d\u2019actions qui permettront d\u2019impl\u00e9menter ces leviers et de d\u00e9terminer le ROI associ\u00e9 ainsi que leur date d\u2019atterrissage.<\/p>\n<p>Au sein de la DSI, le projet peut \u00eatre men\u00e9 aupr\u00e8s des \u00e9tudes ainsi que des infrastructures. Alors que les infrastructures permettent d&#8217;optimiser les co\u00fbts de mat\u00e9riel et technologies (t\u00e9l\u00e9com, logiciels, data services\u2026), c\u00f4t\u00e9 \u00e9tudes, on s&#8217;int\u00e9ressera plus particuli\u00e8rement aux activit\u00e9s, au parc applicatif et aux projets men\u00e9s afin d\u2019optimiser l\u2019utilisation des ressources.<\/p>\n<h2>Anticiper les obstacles et difficult\u00e9s li\u00e9s \u00e0 la m\u00e9thode&#8230;<\/h2>\n<p>Le succ\u00e8s de la m\u00e9thode ZBB reposant sur l\u2019exhaustivit\u00e9 des donn\u00e9es collect\u00e9es, il en r\u00e9sulte une charge de travail importante \u00e0 l\u2019initialisation du programme, tant pour les \u00e9quipes internes que pour l\u2019\u00e9quipe projet. Cette charge est fonction de la maturit\u00e9 des outils de remont\u00e9e des informations utilis\u00e9s mais aussi de la multiplicit\u00e9 des sources d\u2019information. Cette phase comporte \u00e9galement un risque sur la validit\u00e9 des donn\u00e9es fournies par les acteurs ainsi que sur la r\u00e9sistance au changement que peuvent opposer les op\u00e9rationnels.<\/p>\n<p>La phase d\u2019identification et quantification des leviers induit deux contraintes majeures. L\u2019investissement n\u00e9cessaire pour impl\u00e9menter les leviers doit \u00eatre pris en compte ainsi que les adh\u00e9rences et impacts de ces derniers sur les autres services.<\/p>\n<p>Enfin, la phase d\u2019\u00e9laboration des plans d\u2019actions doit prendre en compte la complexit\u00e9 d\u2019une mise en place simultan\u00e9e de plusieurs leviers. Il s\u2019agit aussi de s\u2019assurer que les gains associ\u00e9s seront per\u00e7us dans un d\u00e9lai raisonnable aux vues des objectifs du programme d\u2019optimisation.<\/p>\n<h2>&#8230;et savoir les d\u00e9jouer&#8230;<\/h2>\n<p>Un tel projet n\u00e9cessite un sponsorship important de la part du management pour donner la l\u00e9gitimit\u00e9 indispensable aux \u00e9quipes qui collectent les donn\u00e9es. Il est \u00e9galement important de r\u00e9aliser ce type de projet en dehors de toute p\u00e9riode de construction budg\u00e9taire et ainsi \u00e9viter la tendance naturelle des op\u00e9rationnels de vouloir se raccrocher \u00e0 l\u2019existant.<\/p>\n<p>Par ailleurs, une d\u00e9limitation pr\u00e9cise du p\u00e9rim\u00e8tre et du niveau de d\u00e9tail souhait\u00e9 permettra de cibler avec exactitude les informations recherch\u00e9es et les outils \u00e0 utiliser pour les collecter. Il est aussi important de d\u00e9terminer le niveau de granularit\u00e9 souhait\u00e9 afin de d\u00e9finir la charge des \u00e9quipes mobilis\u00e9es.<\/p>\n<p>Enfin, la co-construction est essentielle pour impliquer les \u00e9quipes\u00a0; l\u2019expertise m\u00e9thodologique combin\u00e9e \u00e0 la connaissance du contexte sont n\u00e9cessaires pour mener \u00e0 bien le projet. La co-construction permet, par ailleurs, d\u2019\u00e9viter la r\u00e9sistance au changement et de faire des \u00e9quipes internes les porteurs de leurs leviers et plans d\u2019actions sur leur p\u00e9rim\u00e8tre.<\/p>\n<p>La promesse faite par la m\u00e9thode ZBB : atteindre entre 10 et 30 % de gains r\u00e9currents. Elle assure la rationalisation des activit\u00e9s en identifiant et \u00e9liminant les \u00e9l\u00e9ments obsol\u00e8tes et sources de pertes. Optimiser l\u2019allocation des ressources en r\u00e9pondant aux besoins des m\u00e9tiers, une m\u00e9thode qui fait sens.<\/p>\n<p>[Article r\u00e9dig\u00e9 en collaboration avec Chlo\u00e9 Viseux, consultante]<\/p>\n<div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Dans un contexte \u00e9conomique tendu, de nombreuses entreprises s&#8217;engagent dans des programmes de r\u00e9duction et d&#8217;optimisation des co\u00fbts. \u00c0 l&#8217;inverse des m\u00e9thodes classiques, la m\u00e9thode ZBB (Zero Based Budgeting) permet d&#8217;identifier des leviers concrets d&#8217;optimisation sans tenir compte du budget&#8230;<\/p>\n","protected":false},"author":463,"featured_media":2538,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"page-templates\/tmpl-one.php","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[35],"tags":[722,721,357,720,543,723],"coauthors":[729],"class_list":["post-2551","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-strategie-projets-it","tag-leviers","tag-methodologie","tag-optimisation","tag-pilotage-economique","tag-reduction-des-couts","tag-zbb"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Optimisation des co\u00fbts de la DSI : et si on reprenait tout \u00e0 z\u00e9ro ?<\/title>\n<meta name=\"description\" content=\"Dans un contexte \u00e9conomique tendu, de nombreuses entreprises s&#039;engagent dans des programmes de r\u00e9duction et d&#039;optimisation des co\u00fbts. \u00c0 l&#039;inverse des m\u00e9thodes classiques, la m\u00e9thode ZBB (Zero Based Budgeting) permet d&#039;identifier des leviers concrets d&#039;optimisation sans tenir compte du budget existant. 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Quels sont les principes et bonnes pratiques de cette m\u00e9thode ? Quels r\u00e9sultats en obtient-on ?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/\" \/>\n<meta property=\"og:site_name\" content=\"RiskInsight\" \/>\n<meta property=\"article:published_time\" content=\"2012-11-27T09:14:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-01-21T08:56:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.riskinsight-wavestone.com\/wp-content\/uploads\/2012\/11\/Fotolia_33861020_M-photos-immeubles-utilisation-LUV-NB.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1541\" \/>\n\t<meta property=\"og:image:height\" content=\"1233\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Cl\u00e9ment Presta\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Cl\u00e9ment Presta\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/\"},\"author\":{\"name\":\"LAUQUE M\u00e9lodie\",\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/en\/#\/schema\/person\/7633e44801e5f8ff61c63b099bc17a97\"},\"headline\":\"Optimisation des co\u00fbts de la DSI : et si on reprenait tout \u00e0 z\u00e9ro ?\",\"datePublished\":\"2012-11-27T09:14:26+00:00\",\"dateModified\":\"2015-01-21T08:56:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/\"},\"wordCount\":733,\"publisher\":{\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.riskinsight-wavestone.com\/wp-content\/uploads\/2012\/11\/Fotolia_33861020_M-photos-immeubles-utilisation-LUV-NB.jpg\",\"keywords\":[\"Leviers\",\"M\u00e9thodologie\",\"optimisation\",\"Pilotage \u00e9conomique\",\"r\u00e9duction des co\u00fbts\",\"ZBB\"],\"articleSection\":[\"M\u00e9tiers - Strat\u00e9gie &amp; projets IT\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/\",\"url\":\"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/\",\"name\":\"Optimisation des co\u00fbts de la DSI : et si on reprenait tout \u00e0 z\u00e9ro ?\",\"isPartOf\":{\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.riskinsight-wavestone.com\/wp-content\/uploads\/2012\/11\/Fotolia_33861020_M-photos-immeubles-utilisation-LUV-NB.jpg\",\"datePublished\":\"2012-11-27T09:14:26+00:00\",\"dateModified\":\"2015-01-21T08:56:08+00:00\",\"description\":\"Dans un contexte \u00e9conomique tendu, de nombreuses entreprises s'engagent dans des programmes de r\u00e9duction et d'optimisation des co\u00fbts. \u00c0 l'inverse des m\u00e9thodes classiques, la m\u00e9thode ZBB (Zero Based Budgeting) permet d'identifier des leviers concrets d'optimisation sans tenir compte du budget existant. 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Quels r\u00e9sultats en obtient-on ?","og_url":"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/","og_site_name":"RiskInsight","article_published_time":"2012-11-27T09:14:26+00:00","article_modified_time":"2015-01-21T08:56:08+00:00","og_image":[{"width":1541,"height":1233,"url":"https:\/\/www.riskinsight-wavestone.com\/wp-content\/uploads\/2012\/11\/Fotolia_33861020_M-photos-immeubles-utilisation-LUV-NB.jpg","type":"image\/jpeg"}],"author":"Cl\u00e9ment Presta","twitter_misc":{"Written by":"Cl\u00e9ment Presta","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/#article","isPartOf":{"@id":"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/"},"author":{"name":"LAUQUE M\u00e9lodie","@id":"https:\/\/www.riskinsight-wavestone.com\/en\/#\/schema\/person\/7633e44801e5f8ff61c63b099bc17a97"},"headline":"Optimisation des co\u00fbts de la DSI : et si on reprenait tout \u00e0 z\u00e9ro ?","datePublished":"2012-11-27T09:14:26+00:00","dateModified":"2015-01-21T08:56:08+00:00","mainEntityOfPage":{"@id":"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/"},"wordCount":733,"publisher":{"@id":"https:\/\/www.riskinsight-wavestone.com\/en\/#organization"},"image":{"@id":"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/#primaryimage"},"thumbnailUrl":"https:\/\/www.riskinsight-wavestone.com\/wp-content\/uploads\/2012\/11\/Fotolia_33861020_M-photos-immeubles-utilisation-LUV-NB.jpg","keywords":["Leviers","M\u00e9thodologie","optimisation","Pilotage \u00e9conomique","r\u00e9duction des co\u00fbts","ZBB"],"articleSection":["M\u00e9tiers - Strat\u00e9gie &amp; projets IT"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/","url":"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/","name":"Optimisation des co\u00fbts de la DSI : et si on reprenait tout \u00e0 z\u00e9ro ?","isPartOf":{"@id":"https:\/\/www.riskinsight-wavestone.com\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/#primaryimage"},"image":{"@id":"https:\/\/www.riskinsight-wavestone.com\/2012\/11\/optimisation-des-couts-de-la-dsi-et-si-on-reprenait-tout-a-zero\/#primaryimage"},"thumbnailUrl":"https:\/\/www.riskinsight-wavestone.com\/wp-content\/uploads\/2012\/11\/Fotolia_33861020_M-photos-immeubles-utilisation-LUV-NB.jpg","datePublished":"2012-11-27T09:14:26+00:00","dateModified":"2015-01-21T08:56:08+00:00","description":"Dans un contexte \u00e9conomique tendu, de nombreuses entreprises s'engagent dans des programmes de r\u00e9duction et d'optimisation des co\u00fbts. \u00c0 l'inverse des m\u00e9thodes classiques, la m\u00e9thode ZBB (Zero Based Budgeting) permet d'identifier des leviers concrets d'optimisation sans tenir compte du budget existant. 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