{"id":8159,"date":"2025-06-09T09:58:55","date_gmt":"2025-06-09T15:58:55","guid":{"rendered":"https:\/\/idsinc.com\/?p=8159"},"modified":"2026-03-05T16:56:01","modified_gmt":"2026-03-05T22:56:01","slug":"donnees-multi-sources","status":"publish","type":"post","link":"https:\/\/idsinc.com\/fr\/multi-source-data\/","title":{"rendered":"Couches de donn\u00e9es de v\u00e9rit\u00e9 \u2013 La puissance des sources multiples"},"content":{"rendered":"<!-- wp:themify-builder\/canvas \/-->\n\n\n<h3 class=\"wp-block-heading\" id=\"h-why-single-source-data-doesn-t-hold-up-in-litigation\"><strong>Pourquoi les donn\u00e9es provenant d&#039;une source unique ne r\u00e9sistent pas aux litiges<\/strong>.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsqu&#039;on pense aux preuves num\u00e9riques, on imagine souvent un simple extrait de donn\u00e9es propre, extrait d&#039;un t\u00e9l\u00e9phone ou d&#039;un compte cloud. Mais la r\u00e9alit\u00e9 est la suivante\u00a0: les donn\u00e9es d&#039;une seule source r\u00e9sistent rarement \u00e0 un examen approfondi. Dans les litiges \u00e0 enjeux \u00e9lev\u00e9s, la v\u00e9rit\u00e9 est complexe, et la v\u00e9ritable valeur r\u00e9side dans la capacit\u00e9 \u00e0 reconstituer plusieurs couches de donn\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Par cons\u00e9quent, l&#039;analyse d&#039;une grande vari\u00e9t\u00e9 d&#039;enregistrements num\u00e9riques\u00a0: donn\u00e9es d&#039;appareils mobiles, journaux de messagerie et d&#039;e-mails, plateformes CRM comme Salesforce, enregistrements d&#039;acc\u00e8s par badge, donn\u00e9es de localisation, etc. s&#039;av\u00e8re n\u00e9cessaire. Prises s\u00e9par\u00e9ment, chaque source de donn\u00e9es offre une vision restreinte. Mais, correctement align\u00e9es, elles peuvent r\u00e9v\u00e9ler des tendances difficiles \u00e0 contester et, tout aussi important, difficiles \u00e0 falsifier.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-the-power-of-completeness\"><strong>Le pouvoir de la compl\u00e9tude<\/strong>.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La superposition de plusieurs sources de donn\u00e9es permet finalement d&#039;obtenir une image plus compl\u00e8te. En construisant cette image compl\u00e8te, nous pouvons comparer plusieurs flux de donn\u00e9es pour r\u00e9v\u00e9ler \u00e0 la fois des corr\u00e9lations et des contradictions. Il ne s&#039;agit pas de prendre les gens en flagrant d\u00e9lit de mensonge. Il s&#039;agit d&#039;empiler et de comparer les activit\u00e9s de diff\u00e9rents syst\u00e8mes pour se rapprocher de ce qui se passe. <em>c&#039;est r\u00e9ellement arriv\u00e9<\/em>Cela comprend la validation des enregistrements coh\u00e9rents et le signalement des incoh\u00e9rences qui pourraient autrement passer inaper\u00e7ues.<br><br>Au final, les gens ne sont pas des narrateurs fiables, mais les donn\u00e9es ne mentent pas, n&#039;inventent pas et ne se trompent pas. Les gens le font, et ce n&#039;est pas une accusation. C&#039;est une r\u00e9alit\u00e9. Les gens ne mentent pas forc\u00e9ment volontairement, du moins pas toujours, et se tromper ? Les humains le font souvent.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-case-study-the-crm-said-one-thing-the-data-said-another\"><strong>\u00c9TUDE DE CAS\u00a0: Le CRM a dit une chose. Les donn\u00e9es en ont dit une autre.<\/strong><\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Dans une affaire r\u00e9cente, l&#039;avocat adverse a pr\u00e9sent\u00e9 des journaux Salesforce pour \u00e9tayer l&#039;affirmation d&#039;un client selon laquelle il voyageait activement et rencontrait des prospects pendant une p\u00e9riode litigieuse. Sa position reposait sur un rapport vierge faisant \u00e9tat de dizaines de r\u00e9unions enregistr\u00e9es dans plusieurs \u00c9tats.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En comparant ces donn\u00e9es CRM aux relev\u00e9s de t\u00e9l\u00e9phonie mobile, nous avons constat\u00e9 un constat bien diff\u00e9rent. Les donn\u00e9es de localisation indiquaient que la personne n&#039;avait pas quitt\u00e9 sa ville natale depuis des semaines. Aucun re\u00e7u d&#039;h\u00f4tel. Aucune confirmation de vol. Aucun passage de badge dans d&#039;autres r\u00e9gions. Rien dans les donn\u00e9es ne permettait de penser que ces rencontres avaient eu lieu en personne, ni m\u00eame qu&#039;elles avaient eu lieu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsque nous avons pr\u00e9sent\u00e9 la chronologie corr\u00e9l\u00e9e \u2013 \u00e9tablie \u00e0 partir de Salesforce, des journaux de localisation t\u00e9l\u00e9phonique et des m\u00e9tadonn\u00e9es de communications internes \u2013, il est apparu clairement que les enregistrements \u00e9taient incoh\u00e9rents. R\u00e9sultat\u00a0? Le tribunal a \u00e9cart\u00e9 les journaux Salesforce comme preuve fiable. Cela a compl\u00e8tement modifi\u00e9 la strat\u00e9gie de l&#039;affaire.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-it-s-not-the-data-it-s-the-discrepancy\"><strong>Ce ne sont pas les donn\u00e9es qui comptent, mais l&#039;\u00e9cart.<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aucun syst\u00e8me n&#039;enregistre les informations de la m\u00eame mani\u00e8re. Les horodatages sont souvent bas\u00e9s sur des fuseaux horaires diff\u00e9rents. Les noms d&#039;utilisateur varient selon les plateformes. Les appareils peuvent enregistrer la m\u00eame activit\u00e9 sous diff\u00e9rents types d&#039;\u00e9v\u00e9nements. Notre mission consiste \u00e0 nettoyer, normaliser et structurer toutes ces donn\u00e9es pour en faire une chronologie coh\u00e9rente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce processus d&#039;alignement n&#039;est pas tr\u00e8s glamour, mais il est essentiel. Il nous permet d&#039;effectuer des comparaisons fiables. Un badge a-t-il \u00e9t\u00e9 utilis\u00e9 au moment m\u00eame o\u00f9 une r\u00e9union Teams \u00e9tait enregistr\u00e9e\u00a0? L&#039;utilisateur \u00e9tait-il r\u00e9ellement pr\u00e9sent dans le b\u00e2timent lorsqu&#039;il a pr\u00e9tendu \u00eatre connect\u00e9 \u00e0 distance\u00a0? Ce genre de questions ne trouve de r\u00e9ponse que si les donn\u00e9es sont trait\u00e9es correctement.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-technology-helps-expertise-confirms-it\"><strong>La technologie aide. L&#039;expertise le confirme.<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nous utilisons une combinaison de Python, de SQL et d&#039;outils internes pour cr\u00e9er ces chronologies. Cependant, la technologie seule ne suffit pas. Le contexte est important. Lorsqu&#039;il s&#039;agit d&#039;ensembles de donn\u00e9es volumineux, les scripts automatis\u00e9s peuvent mettre en \u00e9vidence des anomalies, mais leur interpr\u00e9tation requiert un jugement expert. C&#039;est l\u00e0 qu&#039;interviennent les consultants.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nous ne cherchons pas \u00e0 submerger qui que ce soit avec un jargon technique. Nous construisons des r\u00e9cits compr\u00e9hensibles par les avocats, les juges et les jurys. L&#039;objectif est toujours la clart\u00e9\u00a0: <em>Que s\u2019est-il pass\u00e9, quand et qu\u2019est-ce qui appuie cette conclusion.<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-one-source-is-a-statement-multiple-sources-tell-a-story\"><strong>Une source est une affirmation. Plusieurs sources racontent une histoire.<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La prochaine fois que quelqu&#039;un vous dira\u00a0: \u00ab\u00a0Nous avons extrait les relev\u00e9s t\u00e9l\u00e9phoniques\u00a0\u00bb, demandez-lui ce qu&#039;il a extrait d&#039;autre. Car sans corr\u00e9lation ni v\u00e9rification crois\u00e9e, un ensemble de donn\u00e9es ne repr\u00e9sente qu&#039;une perspective parmi d&#039;autres. Les arguments solides reposent sur des sources multiples qui se confirment, se contredisent ou s&#039;affine mutuellement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u2019est la norme \u00e0 laquelle nous nous conformons et la norme \u00e0 laquelle nous pensons que l\u2019analyse des litiges devrait se conformer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Vous souhaitez en savoir plus sur l&#039;importance de disposer de plusieurs ensembles de donn\u00e9es\u00a0? D\u00e9couvrez un \u00e9pisode r\u00e9cent de notre podcast, iDS Talks. <a href=\"https:\/\/idsinc.com\/fr\/ids-parle-des-couches-de-donnees-de-verite\/\" target=\"_blank\" rel=\"noreferrer noopener\">Vous pouvez \u00e9couter ici.<\/a><\/em><\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\" style=\"margin-bottom:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/idsinc.com\/fr\/ids-parle-des-couches-de-donnees-de-verite\/\" style=\"background-color:#ee5d20\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u00c9coutez le podcast iDS Talks<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>iDS fournit des solutions de donn\u00e9es consultatives aux entreprises et aux cabinets d&#039;avocats du monde entier, leur donnant un avantage d\u00e9cisif, tant dans la salle d&#039;audience qu&#039;en dehors. Les experts en la mati\u00e8re et les strat\u00e8ges de donn\u00e9es d&#039;iDS se sp\u00e9cialisent dans la recherche de solutions \u00e0 des probl\u00e8mes de donn\u00e9es complexes, garantissant que les donn\u00e9es peuvent \u00eatre exploit\u00e9es comme un atout et non comme un handicap. Pour en savoir plus, visitez <a href=\"https:\/\/idsinc.com\/fr\/?_gl=1*1eedu0z*_ga*MTM1NDg0NDU3Mi4xNzQ5MTM0NjM2*_ga_RBND0WDRPZ*czE3NDk0ODQyOTUkbzQkZzEkdDE3NDk0ODQzNTAkajUkbDAkaDA.&amp;_ga=2.118919433.1234313233.1749484295-1354844572.1749134636\" target=\"_blank\" rel=\"noreferrer noopener\">idsinc.com<\/a>.<\/strong><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Why Single-Source Data Doesn\u2019t Hold Up in Litigation. When people think about digital evidence, they often imagine one clean data extract pulled from a phone or a cloud account. But the reality is: single-source data rarely holds up under scrutiny. In high-stakes litigation, the truth is layered, and the real value comes from how well [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":8163,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,30],"tags":[],"class_list":["post-8159","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-digital-evidence","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Data Layers of Truth - The Power of Multiple Sources - iDiscovery Solutions<\/title>\n<meta name=\"description\" content=\"Digital evidence correlation, multi-source data validation, and forensic data analysis strengthen legal narratives and uncover the truth.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/idsinc.com\/fr\/donnees-multi-sources\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Data Layers of Truth - The Power of Multiple Sources\" \/>\n<meta property=\"og:description\" content=\"Digital evidence correlation, multi-source data validation, and forensic data analysis strengthen legal narratives and uncover the truth.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/idsinc.com\/fr\/donnees-multi-sources\/\" \/>\n<meta property=\"og:site_name\" content=\"iDiscovery Solutions\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/iDiscovery-Solutions-110210573904472\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-09T15:58:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-05T22:56:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/idsinc.com\/wp-content\/uploads\/2025\/06\/Data-Layers-of-Truth-The-Power-of-Multiple-Sources-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"960\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jon Hurwitz\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jon Hurwitz\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/idsinc.com\\\/multi-source-data\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/idsinc.com\\\/multi-source-data\\\/\"},\"author\":{\"name\":\"Jon Hurwitz\",\"@id\":\"https:\\\/\\\/idsinc.com\\\/en_gb\\\/#\\\/schema\\\/person\\\/08269d504d8238ee28f7ad9dc2c254d2\"},\"headline\":\"Data Layers of Truth &#8211; 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