{"id":11005,"date":"2026-03-06T07:27:39","date_gmt":"2026-03-05T23:27:39","guid":{"rendered":"https:\/\/www.archimetric.com\/fr\/creating-use-case-diagram-using-visual-paradigm\/"},"modified":"2026-03-06T07:27:39","modified_gmt":"2026-03-05T23:27:39","slug":"creating-use-case-diagram-using-visual-paradigm","status":"publish","type":"post","link":"https:\/\/www.archimetric.com\/fr\/creating-use-case-diagram-using-visual-paradigm\/","title":{"rendered":"Cr\u00e9ation d&#8217;un diagramme de cas d&#8217;utilisation \u00e0 l&#8217;aide de Visual Paradigm"},"content":{"rendered":"<p>Un <a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\">diagramme de cas d&#8217;utilisation<\/a>est un diagramme UML qui vous permet de mod\u00e9liser les fonctions du syst\u00e8me (c&#8217;est-\u00e0-dire les objectifs) et les acteurs qui interagissent avec ces fonctions. Vous pouvez dessiner des diagrammes de cas d&#8217;utilisation dans Visual Paradigm ou utiliser l&#8217;\u00e9diteur de flux d&#8217;\u00e9v\u00e9nements pour documenter les sc\u00e9narios d&#8217;utilisation des cas d&#8217;utilisation.<\/p>\n<p>Un diagramme de cas d&#8217;utilisation illustre et d\u00e9finit le contexte et les exigences d&#8217;un syst\u00e8me entier ou d&#8217;une partie essentielle d&#8217;un syst\u00e8me. Vous pouvez utiliser un seul diagramme de cas d&#8217;utilisation pour mod\u00e9liser un syst\u00e8me complexe ou cr\u00e9er plusieurs diagrammes de cas d&#8217;utilisation pour mod\u00e9liser des parties d&#8217;un syst\u00e8me. Vous d\u00e9veloppez g\u00e9n\u00e9ralement des diagrammes de cas d&#8217;utilisation au d\u00e9but d&#8217;un projet et vous y faites r\u00e9f\u00e9rence tout au long du processus de d\u00e9veloppement.<\/p>\n<p>Sur cette page, vous allez voir comment dessiner des diagrammes de cas d&#8217;utilisation avec <a href=\"https:\/\/www.visual-paradigm.com\/solution\/freeumltool\/\">des outils UML<\/a>.<\/p>\n<h3>Concepts cl\u00e9s du diagramme de cas d&#8217;utilisation<\/h3>\n<p>Les sujets suivants d\u00e9crivent les \u00e9l\u00e9ments du mod\u00e8le dans le diagramme de cas d&#8217;utilisation.<\/p>\n<ul>\n<li>Cas d&#8217;utilisation \u2013 Un cas d&#8217;utilisation d\u00e9crit la fonctionnalit\u00e9 qu&#8217;un syst\u00e8me met en \u0153uvre pour atteindre un objectif de l&#8217;utilisateur. Un cas d&#8217;utilisation doit produire un r\u00e9sultat observable qui est pertinent pour les utilisateurs du syst\u00e8me.<\/li>\n<li>Acteur \u2013 Un acteur repr\u00e9sente le r\u00f4le d&#8217;un utilisateur qui interagit avec le syst\u00e8me que vous mod\u00e9lisez. Un utilisateur peut \u00eatre un utilisateur humain, une organisation, une machine ou un autre syst\u00e8me externe.<br \/>\nSous-syst\u00e8mes<\/li>\n<li>Fronti\u00e8re du syst\u00e8me \u2013 Une fronti\u00e8re du syst\u00e8me est un rectangle que vous pouvez utiliser dans un diagramme de cas d&#8217;utilisation pour distinguer les cas d&#8217;utilisation \u00e0 l&#8217;int\u00e9rieur du syst\u00e8me des acteurs situ\u00e9s \u00e0 l&#8217;ext\u00e9rieur du syst\u00e8me. La fronti\u00e8re du syst\u00e8me est un outil visuel facultatif dans le diagramme ; elle n&#8217;ajoute pas de valeur s\u00e9mantique au mod\u00e8le<\/li>\n<li>Relations \u2013 En UML, une relation est une connexion entre des \u00e9l\u00e9ments du mod\u00e8le. Une relation UML est un type d&#8217;\u00e9l\u00e9ment du mod\u00e8le qui ajoute une s\u00e9mantique au mod\u00e8le en d\u00e9finissant la structure et le comportement entre les \u00e9l\u00e9ments du mod\u00e8le.<\/li>\n<\/ul>\n<h2>Cr\u00e9ation d&#8217;un diagramme de cas d&#8217;utilisation<\/h2>\n<p>Effectuez les \u00e9tapes suivantes pour cr\u00e9er un diagramme de cas d&#8217;utilisation UML dans <span class=\"notranslate\">Visual Paradigm<\/span>.<\/p>\n<ol>\n<li>S\u00e9lectionnez <strong>Diagramme &gt; Nouveau<\/strong> \u00e0 partir de la barre d&#8217;outils de l&#8217;application.<\/li>\n<li>Dans la fen\u00eatre <strong>Nouveau diagramme<\/strong>fen\u00eatre, s\u00e9lectionnez<strong> diagramme de cas d&#8217;utilisation<\/strong>.<\/li>\n<li>Cliquez sur <strong>Suivant<\/strong>.<\/li>\n<li>Entrez le nom et la description du diagramme. Le <strong>Emplacement<\/strong> champ vous permet de s\u00e9lectionner un mod\u00e8le pour stocker le diagramme.<\/li>\n<li>Cliquez sur <strong>OK<\/strong>.<\/li>\n<\/ol>\n<h2>Tracer un syst\u00e8me<\/h2>\n<p>Pour cr\u00e9er un syst\u00e8me dans un diagramme de cas d&#8217;utilisation, s\u00e9lectionnez <strong>Syst\u00e8me<\/strong> sur la barre d&#8217;outils du diagramme, puis cliquez dessus dans le panneau du diagramme. Enfin, nommez le syst\u00e8me nouvellement cr\u00e9\u00e9 lorsqu&#8217;il est cr\u00e9\u00e9.<\/p>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Create a system\" border=\"0\" decoding=\"async\" height=\"361\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/create_a_system_25217.png\" width=\"271\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Cr\u00e9er un syst\u00e8me<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<h2>Tracer un <span class=\"notranslate\">acteur<\/span><\/h2>\n<p>Pour dessiner un <span class=\"notranslate\">acteur<\/span> dans un diagramme de cas d&#8217;utilisation, s\u00e9lectionnez <strong><span class=\"notranslate\">Acteur<\/span><\/strong> sur la barre d&#8217;outils du diagramme, puis cliquez dessus dans le panneau du diagramme. Enfin, nommez le nouvel acteur cr\u00e9\u00e9 <span class=\"notranslate\">acteur<\/span> lorsqu&#8217;il est cr\u00e9\u00e9.<\/p>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Create an actor\" border=\"0\" decoding=\"async\" height=\"168\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/creatre_an_actor_25218.png\" width=\"163\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Cr\u00e9er un <span class=\"notranslate\">acteur<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<h2>Tracer un cas d&#8217;utilisation<\/h2>\n<p>Outre la cr\u00e9ation d&#8217;un cas d&#8217;utilisation via la barre d&#8217;outils du diagramme, vous pouvez \u00e9galement le cr\u00e9er via le Catalogue des ressources :<\/p>\n<ol>\n<li>D\u00e9placez la souris sur une forme source (par exemple un <span class=\"notranslate\">acteur<\/span>).<\/li>\n<li>Appuyez sur le bouton <strong>Catalogue des ressources<\/strong> et faites-le glisser.<br \/>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Resource Catalog\" border=\"0\" decoding=\"async\" height=\"112\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/resource_catalog_26845.png\" width=\"175\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Catalogue de ressources<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li>Rel\u00e2chez le bouton de la souris jusqu&#8217;\u00e0 ce qu&#8217;il atteigne votre emplacement pr\u00e9f\u00e9r\u00e9.<\/li>\n<li>S\u00e9lectionner <strong>Association -&gt; Cas d&#8217;utilisation<\/strong> depuis le catalogue de ressources.<br \/>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"To create a use case\" border=\"0\" decoding=\"async\" height=\"244\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/create_use_case_from_resource_catalog_26846.png\" width=\"438\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Pour cr\u00e9er un cas d&#8217;utilisation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li>La forme source et le cas d&#8217;utilisation nouvellement cr\u00e9\u00e9 sont connect\u00e9s. Enfin, nommez le cas d&#8217;utilisation nouvellement cr\u00e9\u00e9.<br \/>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Use Case created\" border=\"0\" decoding=\"async\" height=\"73\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/use_case_created_26847.png\" width=\"206\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Cas d&#8217;utilisation cr\u00e9\u00e9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\n<h2>Retour \u00e0 la ligne du nom du cas d&#8217;utilisation<\/h2>\n<p>Si un cas d&#8217;utilisation est trop large, vous pouvez le redimensionner en faisant glisser les s\u00e9lecteurs remplis pour une meilleure pr\u00e9sentation. En cons\u00e9quence, le nom du cas d&#8217;utilisation sera automatiquement retourn\u00e9 \u00e0 la ligne.<\/p>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Resize a use case\" border=\"0\" decoding=\"async\" height=\"97\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/resize_use_case_26850.png\" width=\"193\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Redimensionner un cas d&#8217;utilisation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"noteArea\">\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td class=\"noteLabel\">REMARQUE :<\/td>\n<td>Sinon, vous pouvez appuyer sur <strong>Alt<\/strong> + <strong>Entr\u00e9e<\/strong> pour forcer un retour \u00e0 la ligne.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Tracer la relation &lt;&lt;\u00c9tendre&gt;&gt;<\/h2>\n<p>Pour cr\u00e9er une relation d&#8217;\u00e9tendue, d\u00e9placez la souris sur un cas d&#8217;utilisation, appuyez et faites glisser son <strong>Catalogue de ressources<\/strong> bouton. Ensuite, rel\u00e2chez le bouton de la souris \u00e0 l&#8217;emplacement souhait\u00e9 et s\u00e9lectionnez <strong>\u00c9tendre -&gt; Cas d&#8217;utilisation<\/strong> depuis le catalogue de ressources. Le cas d&#8217;utilisation avec des points d&#8217;\u00e9tendue et le cas d&#8217;utilisation nouvellement cr\u00e9\u00e9 sont connect\u00e9s. Apr\u00e8s avoir nomm\u00e9 le cas d&#8217;utilisation nouvellement cr\u00e9\u00e9, vous pouvez nommer le point d&#8217;\u00e9tendue.<\/p>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Create an extend relationship\" border=\"0\" decoding=\"async\" height=\"243\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/extend_relationship_26848.png\" width=\"489\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Cr\u00e9er une relation d&#8217;\u00e9tendue<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<h2>Tracer la relation &lt;&lt;Inclure&gt;&gt;<\/h2>\n<p>Pour cr\u00e9er une relation d&#8217;inclusion, d\u00e9placez la souris sur un cas d&#8217;utilisation, appuyez et faites glisser son <strong>Catalogue de ressources<\/strong> bouton. Ensuite, rel\u00e2chez le bouton de la souris \u00e0 l&#8217;emplacement souhait\u00e9 et s\u00e9lectionnez <strong>Inclure -&gt; Cas d&#8217;utilisation<\/strong> depuis le catalogue de ressources. Un nouveau cas d&#8217;utilisation ainsi qu&#8217;une relation d&#8217;inclusion sont cr\u00e9\u00e9s. Enfin, nommez le cas d&#8217;utilisation nouvellement cr\u00e9\u00e9.<\/p>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Include relationship is created\" border=\"0\" decoding=\"async\" height=\"242\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/include_relationship_26849.png\" width=\"559\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">La relation d&#8217;inclusion est cr\u00e9\u00e9e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<h2>Structuration des cas d&#8217;utilisation avec un package<\/h2>\n<p>Vous pouvez organiser les cas d&#8217;utilisation avec un package lorsque plusieurs cas d&#8217;utilisation sont pr\u00e9sents sur le diagramme.<\/p>\n<p>S\u00e9lectionner <strong>Package<\/strong> sur la barre d&#8217;outils du diagramme.<\/p>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Create a package\" border=\"0\" decoding=\"async\" height=\"161\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/create_a_package_25011.png\" width=\"274\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Cr\u00e9er un package<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Faites glisser la souris pour cr\u00e9er un package entourant ces cas d&#8217;utilisation.<\/p>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Surround use cases with package\" border=\"0\" decoding=\"async\" height=\"309\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/cover_use_cases_904.png\" width=\"344\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Entourer les cas d&#8217;utilisation avec un package<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Enfin, nommez le package.<\/p>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Name the package\" border=\"0\" decoding=\"async\" height=\"294\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/rename_package_905.png\" width=\"325\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Nommer le package<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0<\/p>\n<h2>Repr\u00e9sentation d&#8217;un cas d&#8217;utilisation m\u00e9tier<\/h2>\n<p>L&#8217;outil de diagramme UML prend \u00e9galement en charge la repr\u00e9sentation des <span class=\"notranslate\">acteur<\/span> et cas d&#8217;utilisation. Pour afficher un cas d&#8217;utilisation ordinaire comme cas d&#8217;utilisation m\u00e9tier :<\/p>\n<ol>\n<li>Cliquez avec le bouton droit sur un cas d&#8217;utilisation et s\u00e9lectionnez <strong>Propri\u00e9t\u00e9s de l&#8217;\u00e9l\u00e9ment de mod\u00e8le &gt; Mod\u00e8le m\u00e9tier<\/strong> dans le menu contextuel.<br \/>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td><img alt=\"Click Business Model\" border=\"0\" decoding=\"async\" height=\"177\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/click_business_model_25012.png\" width=\"478\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Cliquez sur Mod\u00e8le m\u00e9tier<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li>Apr\u00e8s s\u00e9lection, une barre oblique suppl\u00e9mentaire appara\u00eetra sur le bord gauche du cas d&#8217;utilisation.<br \/>\n<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\">\n<tbody>\n<tr>\n<td>\u00a0<img border=\"0\" decoding=\"async\" height=\"67\" loading=\"lazy\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/business_model_25013.png\" width=\"170\"\/><\/td>\n<\/tr>\n<tr>\n<td class=\"caption\">Mod\u00e8le m\u00e9tier<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\n<p>\u00a0<\/p>\n<h3><strong>R\u00e9f\u00e9rences :<\/strong><\/h3>\n<ul>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de cas d&#8217;utilisation ?<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/types-of-actor-in-use-case-model\/\">Types d&#8217;acteur dans le mod\u00e8le de cas d&#8217;utilisation<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/sysml\/identify-user-requirements-with-use-case-diagrams\/\">Identifier les besoins des utilisateurs \u00e0 l&#8217;aide des diagrammes de cas d&#8217;utilisation<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/use-case\/what-is-use-case-specification\/\">Qu&#8217;est-ce qu&#8217;une sp\u00e9cification de cas d&#8217;utilisation ?<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/robustness-analysis-tutorial\/\">Un tutoriel pratique sur l&#8217;analyse de robustesse<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/agile-software-development\/user-story-vs-use-case\/\">Histoire d&#8217;utilisateur vs cas d&#8217;utilisation pour le d\u00e9veloppement logiciel agile<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/agile-software-development\/what-is-use-case-driven-approach-for-agile\/\">Approche pilot\u00e9e par les cas d&#8217;utilisation pour le d\u00e9veloppement agile<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>A use case diagram is a UML diagram that enables you to model system functions (i.e., goals) and the actors that interact with those functions. You can draw use case diagrams in Visual Paradigm or use the Event Flow Editor to document use case usage scenarios. On this page, you will see how to draw use case diagrams with UML tools.<\/p>\n","protected":false},"author":3479,"featured_media":11006,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","fifu_image_url":"https:\/\/circle.visual-paradigm.com\/wp-content\/uploads\/2017\/08\/Use-Case-Diagram-Website-_-Structuring-use-cases-with-extend-and-include-use-case-2.png","fifu_image_alt":"","footnotes":""},"categories":[127],"tags":[],"class_list":["post-11005","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unified-modeling-language"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cr\u00e9ation d&#039;un diagramme de cas d&#039;utilisation \u00e0 l&#039;aide de Visual Paradigm - ArchiMetric French<\/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.archimetric.com\/fr\/creating-use-case-diagram-using-visual-paradigm\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cr\u00e9ation d&#039;un diagramme de cas d&#039;utilisation \u00e0 l&#039;aide de Visual Paradigm - ArchiMetric French\" \/>\n<meta property=\"og:description\" content=\"A use case diagram is a UML diagram that enables you to model system functions (i.e., goals) and the actors that interact with those functions. You can draw use case diagrams in Visual Paradigm or use the Event Flow Editor to document use case usage scenarios. 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