{"id":109,"date":"2025-08-03T17:12:36","date_gmt":"2025-08-03T17:12:36","guid":{"rendered":"https:\/\/ledatalab.fr\/?page_id=109"},"modified":"2025-08-17T18:42:14","modified_gmt":"2025-08-17T18:42:14","slug":"data-lineage","status":"publish","type":"page","link":"https:\/\/ledatalab.fr\/index.php\/glossaire\/data-lineage\/","title":{"rendered":"Data Lineage"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/ledatalab.fr\/wp-content\/uploads\/2025\/08\/Data-Lineage_illustration-300x300.png\" alt=\"Illustration pour le terme Data Lineage\" class=\"wp-image-218\" srcset=\"https:\/\/ledatalab.fr\/wp-content\/uploads\/2025\/08\/Data-Lineage_illustration-300x300.png 300w, https:\/\/ledatalab.fr\/wp-content\/uploads\/2025\/08\/Data-Lineage_illustration-1024x1024.png 1024w, https:\/\/ledatalab.fr\/wp-content\/uploads\/2025\/08\/Data-Lineage_illustration-150x150.png 150w, https:\/\/ledatalab.fr\/wp-content\/uploads\/2025\/08\/Data-Lineage_illustration-768x768.png 768w, https:\/\/ledatalab.fr\/wp-content\/uploads\/2025\/08\/Data-Lineage_illustration-1536x1536.png 1536w, https:\/\/ledatalab.fr\/wp-content\/uploads\/2025\/08\/Data-Lineage_illustration.png 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/div>\n\n\n<h1 class=\"wp-block-heading has-text-align-center\">Data Lineage<\/h1>\n\n\n\n<p class=\"has-text-align-center\"><em>Cat\u00e9gorie : Gouvernance &amp; Qualit\u00e9<\/em><\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9finiton<\/h2>\n\n\n\n<p>Le Data Lineage, ou tra\u00e7abilit\u00e9 des donn\u00e9es, d\u00e9signe la cartographie compl\u00e8te du cycle de vie d\u2019une donn\u00e9e : d\u2019o\u00f9 elle vient, par quels traitements elle passe, o\u00f9 elle est utilis\u00e9e, et comment elle \u00e9volue dans le temps.<\/p>\n\n\n\n<p>En d\u2019autres termes, c\u2019est comme un GPS de la donn\u00e9e : on peut remonter \u00e0 la source, suivre chaque \u00e9tape de transformation, jusqu\u2019\u00e0 son affichage dans un rapport ou une application.<\/p>\n\n\n\n<p>Cette visibilit\u00e9 est essentielle pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>garantir la qualit\u00e9 et la fiabilit\u00e9<\/strong> des donn\u00e9es utilis\u00e9es<br><\/li>\n\n\n\n<li><strong>expliquer un r\u00e9sultat m\u00e9tier<\/strong> (\u201cpourquoi ce chiffre est-il si \u00e9lev\u00e9 ?\u201d)<br><\/li>\n\n\n\n<li><strong>identifier rapidement les impacts<\/strong> d\u2019un changement en amont<br><\/li>\n\n\n\n<li>assurer la <strong>conformit\u00e9 r\u00e9glementaire<\/strong> (ex. : RGPD)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Exemple d\u2019usage ou de contexte<\/h2>\n\n\n\n<p>Un analyste remarque une valeur incoh\u00e9rente dans un KPI de performance commerciale.<br>Gr\u00e2ce au data lineage, il peut :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>retracer la donn\u00e9e jusqu\u2019\u00e0 sa <strong>source initiale (CRM Salesforce)<\/strong><br><\/li>\n\n\n\n<li>voir qu\u2019elle est pass\u00e9e par un <strong>script de nettoyage<\/strong> dans un pipeline ETL<br><\/li>\n\n\n\n<li>puis <strong>agr\u00e9g\u00e9e<\/strong> dans un entrep\u00f4t de donn\u00e9es (Data Warehouse)<br><\/li>\n\n\n\n<li>avant d\u2019\u00eatre <strong>visualis\u00e9e dans Power BI<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Cela permet d\u2019identifier l\u2019erreur (ex. : un bug dans le script de transformation) et de la corriger \u00e0 la racine.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Types de tra\u00e7abilit\u00e9<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Type<\/th><th class=\"has-text-align-center\" data-align=\"center\">Exemple<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Tra\u00e7abilit\u00e9 ascendante<\/td><td class=\"has-text-align-center\" data-align=\"center\">D&rsquo;o\u00f9 vient la donn\u00e9e ? (source)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Tra\u00e7abilit\u00e9 descendante<\/td><td class=\"has-text-align-center\" data-align=\"center\">O\u00f9 va-t-elle ? Qui l\u2019utilise ?<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Tra\u00e7abilit\u00e9 des transformations<\/td><td class=\"has-text-align-center\" data-align=\"center\">Comment a-t-elle \u00e9t\u00e9 modifi\u00e9e ?<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Outils &amp; solutions associ\u00e9s<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Catalogues de donn\u00e9es<\/strong> : Collibra, Alation, Microsoft Purview, Informatica<br><\/li>\n\n\n\n<li><strong>Orchestrateurs<\/strong> : Apache Airflow, dbt (documente les d\u00e9pendances)<br><\/li>\n\n\n\n<li><strong>ETL \/ ELT<\/strong> : Talend, Fivetran, Matillion (avec tra\u00e7abilit\u00e9 int\u00e9gr\u00e9e)<br><\/li>\n\n\n\n<li><strong>Usage avec<\/strong> : SQL, Power BI, BigQuery, Snowflake\u2026<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udde0 \u00c0 retenir<\/h2>\n\n\n\n<pre class=\"wp-block-preformatted\">Le Data Lineage est un pilier de la gouvernance des donn\u00e9es. Il permet de comprendre, d'expliquer et de faire confiance aux chiffres et analyses.<br>C\u2019est aussi un levier puissant pour auditer, documenter et s\u00e9curiser la cha\u00eene de traitement des donn\u00e9es.<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Data Lineage Cat\u00e9gorie : Gouvernance &amp; Qualit\u00e9 D\u00e9finiton Le Data Lineage, ou tra\u00e7abilit\u00e9 des donn\u00e9es, d\u00e9signe la cartographie compl\u00e8te du cycle de vie d\u2019une donn\u00e9e : d\u2019o\u00f9 elle vient, par quels traitements elle passe, o\u00f9 elle est utilis\u00e9e, et comment elle \u00e9volue dans le temps. En d\u2019autres termes, c\u2019est comme un GPS de la donn\u00e9e &#8230; <a title=\"Data Lineage\" class=\"read-more\" href=\"https:\/\/ledatalab.fr\/index.php\/glossaire\/data-lineage\/\" aria-label=\"En savoir plus sur Data Lineage\">Lire la suite<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":15,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-109","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Data Lineage - Le Data Lab<\/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:\/\/ledatalab.fr\/index.php\/glossaire\/data-lineage\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Data Lineage - Le Data Lab\" \/>\n<meta property=\"og:description\" content=\"Data Lineage Cat\u00e9gorie : Gouvernance &amp; Qualit\u00e9 D\u00e9finiton Le Data Lineage, ou tra\u00e7abilit\u00e9 des donn\u00e9es, d\u00e9signe la cartographie compl\u00e8te du cycle de vie d\u2019une donn\u00e9e : d\u2019o\u00f9 elle vient, par quels traitements elle passe, o\u00f9 elle est utilis\u00e9e, et comment elle \u00e9volue dans le temps. 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