{"id":14919,"date":"2022-11-15T18:12:59","date_gmt":"2022-11-15T17:12:59","guid":{"rendered":"https:\/\/www.huwise.com\/?post_type=glossary&#038;p=14919"},"modified":"2023-09-11T18:17:30","modified_gmt":"2023-09-11T16:17:30","slug":"data-analyst","status":"publish","type":"glossary","link":"https:\/\/www.huwise.com\/fr\/glossaire\/data-analyst\/","title":{"rendered":"Data Analyst"},"content":{"rendered":"<p>Grande ou petite entreprise, secteur priv\u00e9 ou secteur public, b2b ou b2c, <strong>de plus en plus d&rsquo;organisations int\u00e8grent des data analysts dans leurs \u00e9quipes<\/strong>. Aujourd\u2019hui, ces sp\u00e9cialistes de l\u2019analyse des donn\u00e9es repr\u00e9sentent une v\u00e9ritable aide dans le processus d\u00e9cisionnel. Alors quel est leur r\u00f4le ? Leur comp\u00e9tence ? Et leurs perspectives d\u2019avenir ? C\u2019est ce que nous allons voir.<\/p>\n<h2>Quel est le r\u00f4le du data analyst ?<\/h2>\n<p>Le r\u00f4le du data analyst est de <strong>collecter, traiter et analyser les donn\u00e9es de l\u2019entreprise<\/strong>. Il utilise la data comme un outil d\u2019aide \u00e0 la d\u00e9cision. Et cela concerne toutes les organisations, quelle que soit leur taille (PME, grands groupes, \u2026) ou leur secteur d\u2019activit\u00e9.<\/p>\n<p>Mais toutes les organisations n\u2019ont pas les m\u00eames objectifs. Le r\u00f4le de l\u2019analyste de donn\u00e9es varie alors en fonction de l\u2019entreprise. Par exemple, il peut aider l\u2019\u00e9quipe marketing \u00e0 conna\u00eetre les tendances du march\u00e9, les commerciaux \u00e0 am\u00e9liorer leurs performances. Mais il peut aussi utiliser la data pour r\u00e9soudre des probl\u00e9matiques d\u2019ordre environnemental, social, informatique, \u2026<\/p>\n<p>Quel que soit son objectif, il devra g\u00e9n\u00e9ralement remplir les missions suivantes :<\/p>\n<ul>\n<li><strong>Cr\u00e9er des <a href=\"https:\/\/www.huwise.com\/fr\/blog\/dashboards-datastories-maps-quelles-data-visualisations-choisir\/\" rel=\"noopener\">tableaux de bord<\/a> <\/strong>: cela permet \u00e0 l\u2019entreprise d\u2019avoir une vision d&rsquo;ensemble sur son activit\u00e9 et son march\u00e9.<\/li>\n<li><strong>R\u00e9aliser du reporting<\/strong> : la donn\u00e9e participant \u00e0 la prise de d\u00e9cision, le data analyst doit informer r\u00e9guli\u00e8rement les d\u00e9cideurs des derni\u00e8res tendances.<\/li>\n<li><strong>Concevoir des bases de donn\u00e9es fiables et s\u00e9curis\u00e9es<\/strong> : l\u2019id\u00e9e est de maintenir une qualit\u00e9 des donn\u00e9es optimale.<\/li>\n<li><strong>Am\u00e9liorer les processus data<\/strong> : devant traiter des masses de donn\u00e9es toujours plus grandes, il doit d\u00e9finir un cadre via une strat\u00e9gie de <a href=\"https:\/\/www.huwise.com\/fr\/blog\/quest-ce-que-la-gouvernance-des-donnees\/\" rel=\"noopener\">gouvernance des donn\u00e9es<\/a>.<\/li>\n<\/ul>\n<p>Pour mener \u00e0 bien ces diff\u00e9rentes missions, les analystes de donn\u00e9es ne travaillent pas seuls. En effet, ils sont souvent amen\u00e9s \u00e0 collaborer avec les \u00e9quipes informatiques, la direction et\/ou les autres sp\u00e9cialistes des donn\u00e9es.<\/p>\n<h2>Quelles sont les comp\u00e9tences de l\u2019analyste de donn\u00e9es ?<\/h2>\n<p>Ma\u00eetrisant la donn\u00e9e \u00e0 la perfection, les data analysts doivent tout d\u2019abord avoir une certaine app\u00e9tence pour les math\u00e9matiques, la <a href=\"https:\/\/www.huwise.com\/fr\/glossaire\/business-intelligence-bi\/\" rel=\"noopener\">business intelligence<\/a> et le big data.<\/p>\n<p>Mais de mani\u00e8re g\u00e9n\u00e9rale, il doit ma\u00eetriser les outils informatiques suivants :<\/p>\n<ul>\n<li><strong>Les langages de programmation<\/strong> pour la collecte, le nettoyage, l\u2019analyse et la visualisation des donn\u00e9es.<\/li>\n<li><strong>Les bases de donn\u00e9es<\/strong> : comme des database relationnelles SQL ou DMX.<\/li>\n<li><strong>Le <a href=\"https:\/\/www.huwise.com\/fr\/glossaire\/data-mining-exploration-des-donnees\/\">data mining<\/a>, cleaning and munging<\/strong> : il s\u2019agit de l\u2019extraction de donn\u00e9es, du nettoyage et du masquage.<\/li>\n<li><strong>Excel<\/strong> : m\u00eame si de plus en plus d\u2019outils d\u2019analyse permettent d\u2019automatiser le traitement des donn\u00e9es, ils doivent avoir des comp\u00e9tences avanc\u00e9es pour la mod\u00e9lisation et l\u2019analyse sur Excel.<\/li>\n<li><strong>Le machine learning<\/strong> : c\u2019est un v\u00e9ritable plus, mais pas un pr\u00e9requis indispensable pour devenir analyste de donn\u00e9es.<\/li>\n<\/ul>\n<p>Outre ces comp\u00e9tences techniques, ils doivent aussi avoir un <strong>excellent sens de la communication<\/strong>, de la rigueur, une pens\u00e9e cr\u00e9ative et une vision analytique. On peut donc constater que l&rsquo;acc\u00e8s \u00e0 la donn\u00e9e n\u00e9cessite un grand nombre de comp\u00e9tences. Le nombre de data analyst \u00e9tant limit\u00e9, l&rsquo;acc\u00e8s \u00e0 la data ne peut pas \u00eatre totalement fluide et optimis\u00e9 dans toute l&rsquo;organisation sans des outils adapt\u00e9s.<\/p>\n<h2>Quelle est la diff\u00e9rence entre un data analyst et un data scientist ?<\/h2>\n<p>Le data scientist et le data analyst sont deux experts de la donn\u00e9e. Cela dit, une diff\u00e9rence majeure les s\u00e9pare. En effet, <strong>le data analyst a pour r\u00f4le principal d\u2019analyser des donn\u00e9es d\u00e9j\u00e0 existantes<\/strong>.<br \/>\n\u00c0 l\u2019inverse, l\u2019expert de la <a href=\"https:\/\/www.huwise.com\/fr\/glossaire\/science-des-donnees-data-science\/\">data science<\/a> peut \u00eatre amen\u00e9 \u00e0 concevoir de nouvelles sources de donn\u00e9es et \u00e0 identifier des insights \u00e0 forte valeur ajout\u00e9e<\/p>\n<h2>Quelle \u00e9volution pour le data analyst ?<\/h2>\n<p>Avec le d\u00e9veloppement des technologies, la mission des data analysts \u00e9volue sans cesse. Ils doivent en effet analyser des volumes de donn\u00e9es toujours plus grands, plus \u00e9parses et plus vari\u00e9s.<\/p>\n<p>L&rsquo;objectif des data analyst est de mettre en place des mod\u00e8les pr\u00e9dictifs math\u00e9matiques avanc\u00e9s pour analyser les donn\u00e9es, afin de les extraire ensuite et les pr\u00e9senter de fa\u00e7on lisible pour faciliter la prise de d\u00e9cision \u00e0 tous les niveaux de l\u2019organisation.<\/p>\n<p><strong>Cette t\u00e2che peut vite s\u2019av\u00e9rer chronophage<\/strong>, d\u2019o\u00f9 l\u2019importance de s&rsquo;\u00e9quiper de <a href=\"https:\/\/www.huwise.com\/fr\/all-in-one\/\" rel=\"noopener\">solutions d\u2019exp\u00e9rience data<\/a> pour que tous les m\u00e9tiers non experts puissent manipuler la donn\u00e9e, <strong>permettant ainsi aux data analysts de se concentrer sur des t\u00e2ches \u00e0 forte valeur ajout\u00e9e<\/strong>.<\/p>\n<p>Les data analysts aident donc les organisations \u00e0 prendre les meilleures d\u00e9cisions strat\u00e9giques pour gagner en comp\u00e9titivit\u00e9.<\/p>\n<div align=\"center\">\n<p><!--HubSpot Call-to-Action Code --><span id=\"hs-cta-wrapper-11e95ee1-3265-4109-8f65-5499002aaa34\" class=\"hs-cta-wrapper\"><span id=\"hs-cta-11e95ee1-3265-4109-8f65-5499002aaa34\" class=\"hs-cta-node hs-cta-11e95ee1-3265-4109-8f65-5499002aaa34\"><!-- [if lte IE 8]>\n\n\n<div id=\"hs-cta-ie-element\"><\/div>\n\n\n<![endif]--><a href=\"https:\/\/cta-redirect.hubspot.com\/cta\/redirect\/2041226\/11e95ee1-3265-4109-8f65-5499002aaa34\" target=\"_blank\" rel=\"noopener nofollow noreferrer\"><img decoding=\"async\" id=\"hs-cta-img-11e95ee1-3265-4109-8f65-5499002aaa34\" class=\"hs-cta-img\" style=\"border-width: 0px;\" src=\"https:\/\/no-cache.hubspot.com\/cta\/default\/2041226\/11e95ee1-3265-4109-8f65-5499002aaa34.png\" alt=\"Ebook : D\u00e9mocratiser l'acc\u00e8s et les usages de la donn\u00e9e\" \/><\/a><\/span><script charset=\"utf-8\" src=\"https:\/\/js.hscta.net\/cta\/current.js\"><\/script><script type=\"text\/javascript\"> hbspt.cta.load(2041226, '11e95ee1-3265-4109-8f65-5499002aaa34', {\"useNewLoader\":\"true\",\"region\":\"na1\"}); <\/script><\/span><!-- end HubSpot Call-to-Action Code --><\/p>\n<\/div>\n","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"tags":[129],"letter":[377],"class_list":["post-14919","glossary","type-glossary","status-publish","hentry","tag-gouvernance","letter-d-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - 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