{"id":9782,"date":"2022-01-25T11:00:32","date_gmt":"2022-01-25T11:00:32","guid":{"rendered":"https:\/\/www.cybermedian.com\/fr\/?p=9782"},"modified":"2026-04-20T09:13:40","modified_gmt":"2026-04-20T09:13:40","slug":"cas-dutilisation-apprendre-par-des-exemples","status":"publish","type":"post","link":"https:\/\/www.cybermedian.com\/fr\/use-case-learn-by-examples\/","title":{"rendered":"Cas d&#8217;utilisation \u2014 Apprendre par des exemples"},"content":{"rendered":"<section class=\"section section--body section--first\">\n<div class=\"section-content\">\n<div class=\"section-inner sectionLayout--insetColumn\">\n<p id=\"d415\" class=\"graf graf--p graf-after--h3\">Un cas d&#8217;utilisation d\u00e9crit comment un utilisateur utilise un syst\u00e8me pour atteindre un objectif particulier.\u00a0Un diagramme de cas d&#8217;utilisation comprend le syst\u00e8me, les cas d&#8217;utilisation et les acteurs associ\u00e9s et les relie les uns aux autres pour visualiser\u00a0: qu&#8217;est-ce qui est d\u00e9crit\u00a0?\u00a0(\u00a0<strong class=\"markup--strong markup--p-strong\">syst\u00e8me<\/strong>\u00a0), qui utilise le syst\u00e8me\u00a0?\u00a0(\u00a0<strong class=\"markup--strong markup--p-strong\">acteurs<\/strong>\u00a0) et qu&#8217;est-ce que les acteurs veulent r\u00e9aliser\u00a0?\u00a0(\u00a0<strong class=\"markup--strong markup--p-strong\">cas d&#8217;utilisation<\/strong>\u00a0), ainsi, les cas d&#8217;utilisation aident \u00e0 garantir que le bon syst\u00e8me est d\u00e9velopp\u00e9 en capturant les exigences du point de vue de l&#8217;utilisateur.<\/p>\n<p id=\"6496\" class=\"graf graf--p graf-after--p\">Un diagramme de cas d&#8217;utilisation est g\u00e9n\u00e9ralement simple.\u00a0Il ne montre pas le d\u00e9tail des cas d&#8217;utilisation\u00a0:<\/p>\n<ul class=\"postList\">\n<li id=\"e679\" class=\"graf graf--li graf-after--p\">Il ne r\u00e9sume que certaines des relations entre les cas d&#8217;utilisation, les acteurs et les syst\u00e8mes.<\/li>\n<li id=\"79fd\" class=\"graf graf--li graf-after--li\">Il ne montre pas l&#8217;ordre dans lequel les \u00e9tapes sont effectu\u00e9es pour atteindre les objectifs de chaque cas d&#8217;utilisation.<\/li>\n<\/ul>\n<p id=\"2666\" class=\"graf graf--p graf-after--li\">Comme indiqu\u00e9, un diagramme de cas d&#8217;utilisation doit \u00eatre simple et ne contenir que quelques formes.\u00a0Si le v\u00f4tre contient plus de 20 cas d&#8217;utilisation, vous utilisez probablement mal le diagramme de cas d&#8217;utilisation.<\/p>\n<p id=\"748a\" class=\"graf graf--p graf-after--p\">La figure ci-dessous montre la hi\u00e9rarchie du diagramme UML et le positionnement du diagramme de cas d&#8217;utilisation UML.\u00a0Comme vous pouvez le voir, les diagrammes de cas d&#8217;utilisation appartiennent \u00e0 la famille des diagrammes de comportement.<\/p>\n<figure id=\"4678\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0M0GGjOUMjM-P8DJM.png\" data-image-id=\"0*M0GGjOUMjM-P8DJM.png\" data-width=\"832\" data-height=\"501\" data-is-featured=\"true\" \/><\/figure>\n<h3 id=\"a2db\" class=\"graf graf--h3 graf-after--figure\"><span id=\"Use_Case_Diagram_at_a_Glance\">Diagramme de cas d&#8217;utilisation en un coup d&#8217;\u0153il<\/span><\/h3>\n<p id=\"cdc3\" class=\"graf graf--p graf-after--h3\">Une forme standard de diagramme de cas d&#8217;utilisation est d\u00e9finie dans le langage de mod\u00e9lisation unifi\u00e9, comme indiqu\u00e9 dans l&#8217;exemple de diagramme de cas d&#8217;utilisation ci-dessous\u00a0:<\/p>\n<figure id=\"ce26\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0N32b47ItZgZwoe_a.png\" data-image-id=\"0*N32b47ItZgZwoe_a.png\" data-width=\"616\" data-height=\"360\" \/><\/figure>\n<p id=\"38c0\" class=\"graf graf--p graf-after--figure\">Notation DescriptionRepr\u00e9sentation visuelle<\/p>\n<p id=\"21c4\" class=\"graf graf--p graf-after--p\">Acteur<\/p>\n<ul class=\"postList\">\n<li id=\"e825\" class=\"graf graf--li graf-after--p\">Quelqu&#8217;un interagit avec le cas d&#8217;utilisation (fonction syst\u00e8me).<\/li>\n<li id=\"0b51\" class=\"graf graf--li graf-after--li\">Nomm\u00e9 par le nom.<\/li>\n<li id=\"6df7\" class=\"graf graf--li graf-after--li\">L&#8217;acteur joue un r\u00f4le dans l&#8217;entreprise<\/li>\n<li id=\"51d8\" class=\"graf graf--li graf-after--li\">Semblable au concept d&#8217;utilisateur, mais un utilisateur peut jouer diff\u00e9rents r\u00f4les<\/li>\n<li id=\"37fc\" class=\"graf graf--li graf-after--li\">Par exemple:<\/li>\n<li id=\"fdf5\" class=\"graf graf--li graf-after--li\">Un prof.\u00a0peut \u00eatre instructeur et aussi chercheur<\/li>\n<li id=\"a3f3\" class=\"graf graf--li graf-after--li\">joue 2 r\u00f4les avec deux syst\u00e8mes<\/li>\n<li id=\"7bce\" class=\"graf graf--li graf-after--li\">L&#8217;acteur d\u00e9clenche des cas d&#8217;utilisation.<\/li>\n<li id=\"6b9f\" class=\"graf graf--li graf-after--li\">L&#8217;acteur a une responsabilit\u00e9 envers le syst\u00e8me (entr\u00e9es) et l&#8217;acteur a des attentes vis-\u00e0-vis du syst\u00e8me (sorties).<\/li>\n<\/ul>\n<figure id=\"35cb\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0ovEoJ1c4ITIbs3mq.png\" data-image-id=\"0*ovEoJ1c4ITIbs3mq.png\" data-width=\"31\" data-height=\"73\" \/><\/figure>\n<p id=\"4646\" class=\"graf graf--p graf-after--figure\">Cas d&#8217;utilisation<\/p>\n<ul class=\"postList\">\n<li id=\"afbf\" class=\"graf graf--li graf-after--p\">Fonction du syst\u00e8me (processus \u2014 automatis\u00e9 ou manuel)<\/li>\n<li id=\"8606\" class=\"graf graf--li graf-after--li\">Nomm\u00e9 par verbe + nom (ou syntagme nominal).<\/li>\n<li id=\"123c\" class=\"graf graf--li graf-after--li\">c&#8217;est-\u00e0-dire faire quelque chose<\/li>\n<li id=\"6d1b\" class=\"graf graf--li graf-after--li\">Chaque acteur doit \u00eatre li\u00e9 \u00e0 un cas d&#8217;utilisation, tandis que certains cas d&#8217;utilisation peuvent ne pas \u00eatre li\u00e9s \u00e0 des acteurs.<\/li>\n<\/ul>\n<figure id=\"d7af\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0l-Hszw3jCkG_H1td.png\" data-image-id=\"0*l-Hszw3jCkG_H1td.png\" data-width=\"81\" data-height=\"41\" \/><\/figure>\n<p id=\"a30d\" class=\"graf graf--p graf-after--figure\">Lien de communication<\/p>\n<ul class=\"postList\">\n<li id=\"9542\" class=\"graf graf--li graf-after--p\">La participation d&#8217;un acteur \u00e0 un cas d&#8217;utilisation est mat\u00e9rialis\u00e9e en reliant un acteur \u00e0 un cas d&#8217;utilisation par un lien solide.<\/li>\n<li id=\"2a53\" class=\"graf graf--li graf-after--li\">Les acteurs peuvent \u00eatre connect\u00e9s \u00e0 des cas d&#8217;utilisation par des associations, indiquant que l&#8217;acteur et le cas d&#8217;utilisation communiquent entre eux \u00e0 l&#8217;aide de messages.<\/li>\n<\/ul>\n<figure id=\"72ba\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0_1PX9yPem3sBvnRp.png\" data-image-id=\"0*_1PX9yPem3sBvnRp.png\" data-width=\"130\" data-height=\"1\" \/><\/figure>\n<p id=\"c59e\" class=\"graf graf--p graf-after--figure\">Limite du syst\u00e8me<\/p>\n<ul class=\"postList\">\n<li id=\"4516\" class=\"graf graf--li graf-after--p\">La limite du syst\u00e8me est potentiellement l&#8217;ensemble du syst\u00e8me tel que d\u00e9fini dans le document des exigences.<\/li>\n<li id=\"a3e7\" class=\"graf graf--li graf-after--li\">Pour les grands syst\u00e8mes complexes, chaque module peut constituer la limite du syst\u00e8me.<\/li>\n<li id=\"709f\" class=\"graf graf--li graf-after--li\">Par exemple, pour un syst\u00e8me ERP pour une organisation, chacun des modules tels que personnel, paie, comptabilit\u00e9, etc.<\/li>\n<li id=\"0168\" class=\"graf graf--li graf-after--li\">peut former une fronti\u00e8re syst\u00e8me pour les cas d&#8217;utilisation sp\u00e9cifiques \u00e0 chacune de ces fonctions m\u00e9tier.<\/li>\n<li id=\"e4cf\" class=\"graf graf--li graf-after--li\">L&#8217;ensemble du syst\u00e8me peut couvrir tous ces modules repr\u00e9sentant la limite globale du syst\u00e8me<\/li>\n<\/ul>\n<figure id=\"76f4\" class=\"graf graf--figure graf-after--li graf--trailing\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0PUdb7FHaXX3UgVuF.png\" data-image-id=\"0*PUdb7FHaXX3UgVuF.png\" data-width=\"160\" data-height=\"225\" \/><\/figure>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"section section--body section--last\">\n<div class=\"section-divider\">\n<hr class=\"section-divider\" \/>\n<\/div>\n<div class=\"section-content\">\n<div class=\"section-inner sectionLayout--insetColumn\">\n<h3 id=\"38aa\" class=\"graf graf--h3 graf--leading\"><span id=\"Structuring_Use_Case_Diagram_with_Relationships\">Structurer un diagramme de cas d&#8217;utilisation avec des relations<\/span><\/h3>\n<p id=\"f5c3\" class=\"graf graf--p graf-after--h3\">Les cas d&#8217;utilisation partagent diff\u00e9rents types de relations.\u00a0D\u00e9finir la relation entre deux cas d&#8217;utilisation est la d\u00e9cision des analystes logiciels du diagramme de cas d&#8217;utilisation.\u00a0Une relation entre deux cas d&#8217;utilisation mod\u00e9lise essentiellement la d\u00e9pendance entre les deux cas d&#8217;utilisation.\u00a0La r\u00e9utilisation d&#8217;un cas d&#8217;utilisation existant en utilisant diff\u00e9rents types de relations r\u00e9duit l&#8217;effort global requis pour d\u00e9velopper un syst\u00e8me.\u00a0Les relations de cas d&#8217;utilisation sont r\u00e9pertori\u00e9es comme suit\u00a0:<\/p>\n<p id=\"2310\" class=\"graf graf--p graf-after--p\">Relation de cas d&#8217;utilisation \u2014 Repr\u00e9sentation visuelle<\/p>\n<p id=\"1285\" class=\"graf graf--p graf-after--p\"><strong class=\"markup--strong markup--p-strong\">Prolonge<\/strong><\/p>\n<ul class=\"postList\">\n<li id=\"cef9\" class=\"graf graf--li graf-after--p\">Indique qu&#8217;un cas d&#8217;utilisation &#8220;Mot de passe invalide&#8221; peut inclure (sous r\u00e9serve de ce qui est sp\u00e9cifi\u00e9 dans l&#8217;extension) le comportement sp\u00e9cifi\u00e9 par le cas d&#8217;utilisation de base &#8220;Compte de connexion&#8221;.<\/li>\n<li id=\"ddc2\" class=\"graf graf--li graf-after--li\">Repr\u00e9sentez avec une fl\u00e8che dirig\u00e9e ayant une ligne pointill\u00e9e.\u00a0La pointe de la fl\u00e8che pointe vers le cas d&#8217;utilisation de base et le cas d&#8217;utilisation enfant est connect\u00e9 \u00e0 la base de la fl\u00e8che.<\/li>\n<li id=\"c547\" class=\"graf graf--li graf-after--li\">Le st\u00e9r\u00e9otype &#8220;&lt;&lt;extends&gt;&gt;&#8221; s&#8217;identifie comme une relation d&#8217;extension<\/li>\n<\/ul>\n<figure id=\"da78\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0NDoHVpY3m5dtqmTH.png\" data-image-id=\"0*NDoHVpY3m5dtqmTH.png\" data-width=\"443\" data-height=\"60\" \/><\/figure>\n<p id=\"6519\" class=\"graf graf--p graf-after--figure\"><strong class=\"markup--strong markup--p-strong\">Inclure<\/strong><\/p>\n<ul class=\"postList\">\n<li id=\"b77e\" class=\"graf graf--li graf-after--p\">Lorsqu&#8217;un cas d&#8217;utilisation est d\u00e9crit comme utilisant la fonctionnalit\u00e9 d&#8217;une autre fonctionnalit\u00e9 d&#8217;un autre cas d&#8217;utilisation, cette relation entre les cas d&#8217;utilisation est nomm\u00e9e relation d&#8217;inclusion ou d&#8217;utilisation.<\/li>\n<li id=\"af89\" class=\"graf graf--li graf-after--li\">Un cas d&#8217;utilisation inclut la fonctionnalit\u00e9 d\u00e9crite dans un autre cas d&#8217;utilisation dans le cadre de son flux de processus m\u00e9tier.<\/li>\n<li id=\"0fef\" class=\"graf graf--li graf-after--li\">Une relation d&#8217;utilisation entre le cas d&#8217;utilisation de base et le cas d&#8217;utilisation enfant indique qu&#8217;une instance du cas d&#8217;utilisation de base inclura le comportement sp\u00e9cifi\u00e9 dans le cas d&#8217;utilisation enfant.<\/li>\n<li id=\"2948\" class=\"graf graf--li graf-after--li\">Une relation d&#8217;inclusion est illustr\u00e9e par une fl\u00e8che dirig\u00e9e ayant une ligne pointill\u00e9e.\u00a0La pointe de la fl\u00e8che pointe vers le cas d&#8217;utilisation enfant et le cas d&#8217;utilisation parent connect\u00e9s \u00e0 la base de la fl\u00e8che.<\/li>\n<li id=\"ef94\" class=\"graf graf--li graf-after--li\">Le st\u00e9r\u00e9otype &#8220;&lt;&lt;include&gt;&gt;&#8221; identifie la relation comme une relation d&#8217;inclusion.<\/li>\n<\/ul>\n<figure id=\"6c0e\" class=\"graf graf--figure graf-after--li\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/07oeSkdepmKL40JLg.png\" data-image-id=\"0*7oeSkdepmKL40JLg.png\" data-width=\"328\" data-height=\"41\" \/><\/figure>\n<p id=\"5244\" class=\"graf graf--p graf-after--figure\"><strong class=\"markup--strong markup--p-strong\">G\u00e9n\u00e9ralisation<\/strong><\/p>\n<ul class=\"postList\">\n<li id=\"a751\" class=\"graf graf--li graf-after--p\">Une relation de g\u00e9n\u00e9ralisation est une relation parent-enfant entre des cas d&#8217;utilisation.<\/li>\n<li id=\"7adf\" class=\"graf graf--li graf-after--li\">Le cas d&#8217;utilisation enfant dans la relation de g\u00e9n\u00e9ralisation a la signification du processus m\u00e9tier sous-jacent, mais il s&#8217;agit d&#8217;une am\u00e9lioration du cas d&#8217;utilisation parent.<\/li>\n<li id=\"399f\" class=\"graf graf--li graf-after--li\">La g\u00e9n\u00e9ralisation est repr\u00e9sent\u00e9e par une fl\u00e8che dirig\u00e9e avec une pointe de fl\u00e8che triangulaire.<\/li>\n<li id=\"019e\" class=\"graf graf--li graf-after--li\">Le cas d&#8217;utilisation enfant est connect\u00e9 \u00e0 la base de la fl\u00e8che.\u00a0La pointe de la fl\u00e8che est connect\u00e9e au cas d&#8217;utilisation parent.<\/li>\n<\/ul>\n<h3 id=\"ba35\" class=\"graf graf--h3 graf-after--li\"><span id=\"Learn_By_Examples_Passenger_Service\">Apprendre par des exemples \u2014 Service aux passagers<\/span><\/h3>\n<p id=\"2519\" class=\"graf graf--p graf-after--h3\">Voici un exemple de diagramme de cas d&#8217;utilisation pour le service aux passagers, jetons un coup d&#8217;\u0153il.\u00a0Dans le mod\u00e8le de cas d&#8217;utilisation, il y a 4 acteurs\u00a0: le repr\u00e9sentant \u00e0 l&#8217;enregistrement, les douanes de l&#8217;a\u00e9roport de destination, le transport des passagers et des bagages.\u00a0Ils interagissent avec le syst\u00e8me pour atteindre divers objectifs commerciaux, tels que mod\u00e9lis\u00e9s par des cas d&#8217;utilisation d&#8217;enregistrement, d&#8217;enregistrement automatis\u00e9, d&#8217;enregistrement express, d&#8217;embarquement et de demande de liste de passagers.<\/p>\n<p id=\"1ffd\" class=\"graf graf--p graf-after--p\">Utilisez ce mod\u00e8le de diagramme de cas d&#8217;utilisation pour cr\u00e9er votre propre diagramme.<\/p>\n<p id=\"5384\" class=\"graf graf--p graf-after--p\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/92142a93-2b66-495e-8c97-6fd871672ee6.xml&amp;name=Passenger%20Service\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/92142a93-2b66-495e-8c97-6fd871672ee6.xml&amp;name=Passenger%20Service\">\u00a0Cliquez\u00a0<\/a>\u00a0simplement sur\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/92142a93-2b66-495e-8c97-6fd871672ee6.xml&amp;name=Passenger%20Service\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/92142a93-2b66-495e-8c97-6fd871672ee6.xml&amp;name=Passenger%20Service\"><strong class=\"markup--strong markup--p-strong\">Utiliser ce mod\u00e8le<\/strong><\/a>\u00a0\u00a0pour modifier, ou\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagramlist:proj=0&amp;new=UseCaseDiagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagramlist:proj=0&amp;new=UseCaseDiagram\">\u00a0cliquez sur\u00a0\u00a0<strong class=\"markup--strong markup--p-strong\">Cr\u00e9er un vide<\/strong><\/a>\u00a0\u00a0pour dessiner \u00e0 partir de z\u00e9ro.<\/p>\n<figure id=\"e4fe\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0lws26DubukhKoxi.png\" data-image-id=\"0*lws26DubukhKoxi-.png\" data-width=\"643\" data-height=\"393\" \/><\/figure>\n<h4 id=\"8bb6\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Learn_by_Examples_Broadcasting_System_Use_Case_Package\">Apprendre par des exemples &#8211; Syst\u00e8me de diffusion (ensemble de cas d&#8217;utilisation)<\/span><\/h4>\n<p id=\"bd5b\" class=\"graf graf--p graf-after--h4\">Ceci est un exemple de diagramme de cas d&#8217;utilisation pour un syst\u00e8me de diffusion en ligne.\u00a0Les utilisateurs tels que le membre g\u00e9n\u00e9ral et l&#8217;administrateur sont repr\u00e9sent\u00e9s en tant qu&#8217;acteurs, tandis que les objectifs commerciaux du syst\u00e8me, par exemple, regarder des programmes archiv\u00e9s et en direct, participer \u00e0 une discussion sur le programme, t\u00e9l\u00e9charger des programmes t\u00e9l\u00e9vis\u00e9s, sont repr\u00e9sent\u00e9s en tant que cas d&#8217;utilisation (c&#8217;est-\u00e0-dire les formes ovales).\u00a0Ce diagramme de cas d&#8217;utilisation utilise les limites du syst\u00e8me et les formes de package pour organiser les cas d&#8217;utilisation.\u00a0Ce n&#8217;est pas indispensable, mais cela rend l&#8217;ensemble du diagramme de cas d&#8217;utilisation bien organis\u00e9.\u00a0En outre, l&#8217;utilisation de la g\u00e9n\u00e9ralisation dans la liaison du membre g\u00e9n\u00e9ral\/premium avec le membre mod\u00e9lise le fait que le comportement d\u00e9fini pour le membre est partag\u00e9 entre le membre g\u00e9n\u00e9ral et le membre premium.<\/p>\n<p id=\"2a5f\" class=\"graf graf--p graf-after--p\">Utilisez ce mod\u00e8le de diagramme de cas d&#8217;utilisation pour cr\u00e9er votre propre diagramme.<\/p>\n<p id=\"9b74\" class=\"graf graf--p graf-after--p\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/8b3fb61d-abbb-4d2c-8d3b-47e643316f1d.xml&amp;name=Broadcasting%20System\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/8b3fb61d-abbb-4d2c-8d3b-47e643316f1d.xml&amp;name=Broadcasting%20System\">Cliquez\u00a0<\/a>\u00a0simplement\u00a0 sur\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/8b3fb61d-abbb-4d2c-8d3b-47e643316f1d.xml&amp;name=Broadcasting%20System\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/8b3fb61d-abbb-4d2c-8d3b-47e643316f1d.xml&amp;name=Broadcasting%20System\"><strong class=\"markup--strong markup--p-strong\">Utiliser ce mod\u00e8le<\/strong><\/a><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/8b3fb61d-abbb-4d2c-8d3b-47e643316f1d.xml&amp;name=Broadcasting%20System\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/8b3fb61d-abbb-4d2c-8d3b-47e643316f1d.xml&amp;name=Broadcasting%20System\">\u00a0\u00a0pour modifier<\/a>\u00a0, ou\u00a0\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagramlist:proj=0&amp;new=UseCaseDiagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagramlist:proj=0&amp;new=UseCaseDiagram\">cliquez sur\u00a0\u00a0<strong class=\"markup--strong markup--p-strong\">Cr\u00e9er un vide<\/strong><\/a>\u00a0\u00a0pour dessiner \u00e0 partir de z\u00e9ro.<\/p>\n<figure id=\"7869\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0guOv9uGmeduZE7jC.png\" data-image-id=\"0*guOv9uGmeduZE7jC.png\" data-width=\"665\" data-height=\"537\" \/><\/figure>\n<h4 id=\"af5f\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Learn_by_Examples_Structuring_Use_Cases_with_Include_and_Extend\">Apprendre par des exemples \u2014 Structurer les cas d&#8217;utilisation avec inclure et \u00e9tendre<\/span><\/h4>\n<p id=\"8ccc\" class=\"graf graf--p graf-after--h4\">Cet exemple de diagramme de cas d&#8217;utilisation d\u00e9crit un mod\u00e8le de plusieurs cas d&#8217;utilisation m\u00e9tier.\u00a0Le mod\u00e8le de cas d&#8217;utilisation repr\u00e9sente les interactions entre un restaurant (le syst\u00e8me commercial) et ses principales parties prenantes (acteurs commerciaux et travailleurs commerciaux).\u00a0Une fois les cas d&#8217;utilisation de base identifi\u00e9s, vous pouvez structurer ces cas d&#8217;utilisation avec &lt;&gt; et &lt;&gt; cas d&#8217;utilisation pour plus de clart\u00e9.<\/p>\n<p id=\"bfa9\" class=\"graf graf--p graf-after--p\">Utilisez ce mod\u00e8le de diagramme de cas d&#8217;utilisation pour cr\u00e9er votre propre diagramme.<\/p>\n<p id=\"ec50\" class=\"graf graf--p graf-after--p\"><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/4814c887-a726-47bb-8d07-df369cc93777.xml&amp;name=Include%20and%20Extend%20Use%20Cases\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/4814c887-a726-47bb-8d07-df369cc93777.xml&amp;name=Include%20and%20Extend%20Use%20Cases\">Cliquez\u00a0<\/a>\u00a0simplement\u00a0 sur\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/4814c887-a726-47bb-8d07-df369cc93777.xml&amp;name=Include%20and%20Extend%20Use%20Cases\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/4814c887-a726-47bb-8d07-df369cc93777.xml&amp;name=Include%20and%20Extend%20Use%20Cases\"><strong class=\"markup--strong markup--p-strong\">Utiliser ce mod\u00e8le<\/strong><\/a><a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/4814c887-a726-47bb-8d07-df369cc93777.xml&amp;name=Include%20and%20Extend%20Use%20Cases\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagram:proj=0&amp;type=UseCaseDiagram&amp;gallery=\/repository\/4814c887-a726-47bb-8d07-df369cc93777.xml&amp;name=Include%20and%20Extend%20Use%20Cases\">\u00a0\u00a0pour modifier<\/a>\u00a0, ou\u00a0\u00a0<a class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagramlist:proj=0&amp;new=UseCaseDiagram\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/online.visual-paradigm.com\/diagrams.jsp#diagramlist:proj=0&amp;new=UseCaseDiagram\">cliquez sur\u00a0\u00a0<strong class=\"markup--strong markup--p-strong\">Cr\u00e9er un vide<\/strong><\/a>\u00a0\u00a0pour dessiner \u00e0 partir de z\u00e9ro.<\/p>\n<figure id=\"f634\" class=\"graf graf--figure graf-after--p\"><img decoding=\"async\" class=\"graf-image\" src=\"https:\/\/www.cybermedian.com\/wp-content\/uploads\/2022\/02\/0Bp1z89qEd_iU9AMS.png\" data-image-id=\"0*Bp1z89qEd_iU9AMS.png\" data-width=\"594\" data-height=\"505\" \/><\/figure>\n<h4 id=\"176b\" class=\"graf graf--h4 graf-after--figure\"><span id=\"Other_UML_Articles\">Autres articles UML<\/span><\/h4>\n<p id=\"0761\" class=\"graf graf--p graf-after--h4\">Langage de mod\u00e9lisation unifi\u00e9 (UML)<\/p>\n<ul class=\"postList\">\n<li id=\"6312\" class=\"graf graf--li graf-after--p\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-uml\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-uml\/\">Qu&#8217;est-ce qu&#8217;UML ?<\/a><\/li>\n<li id=\"b443\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/why-uml-modeling\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/why-uml-modeling\/\">Pourquoi la mod\u00e9lisation UML ?<\/a><\/li>\n<li id=\"d0ec\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/overview-of-the-14-uml-diagram-types\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/overview-of-the-14-uml-diagram-types\/\">Pr\u00e9sentation des 14 types de diagrammes UML<\/a><\/li>\n<li id=\"1e5d\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-class-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-class-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de classes\u00a0?<\/a><\/li>\n<li id=\"6970\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-component-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-component-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de composants\u00a0?<\/a><\/li>\n<li id=\"840a\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-deployment-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-deployment-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de d\u00e9ploiement\u00a0?<\/a><\/li>\n<li id=\"47ee\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-object-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-object-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme d&#8217;objets\u00a0?<\/a><\/li>\n<li id=\"7789\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-package-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-package-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de package\u00a0?<\/a><\/li>\n<li id=\"db9c\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-composite-structure-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-composite-structure-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de structure composite\u00a0?<\/a><\/li>\n<li id=\"b22a\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-profile-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-profile-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de profil\u00a0?<\/a><\/li>\n<li id=\"e030\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-use-case-diagram\/\" target=\"_blank\" rel=\"noopener\" data-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\u00a0?<\/a><\/li>\n<li id=\"2709\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-activity-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-activity-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme d&#8217;activit\u00e9\u00a0?<\/a><\/li>\n<li id=\"7a30\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-state-machine-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-state-machine-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de machine d&#8217;\u00e9tat\u00a0?<\/a><\/li>\n<li id=\"136f\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de s\u00e9quence\u00a0?<\/a><\/li>\n<li id=\"2c9c\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-communication-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-communication-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de communication\u00a0?<\/a><\/li>\n<li id=\"8e6c\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-interaction-overview-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-interaction-overview-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme d&#8217;aper\u00e7u d&#8217;interaction\u00a0?<\/a><\/li>\n<li id=\"0ca8\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-timing-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-timing-diagram\/\">Qu&#8217;est-ce que le diagramme de temps<\/a><\/li>\n<li id=\"e35a\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-uml-collaboration-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-uml-collaboration-diagram\/\">Qu&#8217;est-ce qu&#8217;un diagramme de collaboration UML\u00a0?<\/a><\/li>\n<li id=\"0b45\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-aggregation-vs-composition\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-aggregation-vs-composition\/\">UML Association vs Agr\u00e9gation vs Composition<\/a><\/li>\n<li id=\"211a\" class=\"graf graf--li graf-after--li\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-class-diagram-tutorial\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/uml-class-diagram-tutorial\/\">Tutoriel de diagramme de classes UML<\/a><\/li>\n<li id=\"e4f1\" class=\"graf graf--li graf-after--li graf--trailing\"><a class=\"markup--anchor markup--li-anchor\" href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/state-machine-diagram-vs-activity-diagram\/\" target=\"_blank\" rel=\"noopener\" data-href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/state-machine-diagram-vs-activity-diagram\/\">Diagramme de machine d&#8217;\u00e9tat vs diagramme d&#8217;activit\u00e9<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Un cas d&#8217;utilisation d\u00e9crit comment un utilisateur utilise un syst\u00e8me pour atteindre un objectif sp\u00e9cifique. Un diagramme de cas d&#8217;utilisation se compose d&#8217;un syst\u00e8me, de cas d&#8217;utilisation li\u00e9s, et d&#8217;acteurs, et les relie les uns aux autres afin de visualiser : qu&#8217;est-ce qui est d\u00e9crit ? (le syst\u00e8me), qui utilise le syst\u00e8me ? (acteur) et ce que l&#8217;acteur veut r\u00e9aliser ? (cas d&#8217;utilisation), de sorte que les cas d&#8217;utilisation contribuent \u00e0 garantir que le bon syst\u00e8me est d\u00e9velopp\u00e9 en capturant les exigences du point de vue de l&#8217;utilisateur.<\/p>\n","protected":false},"author":5,"featured_media":9784,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-9782","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 v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cas d&#039;utilisation \u2014 Apprendre par des exemples - Cyberm\u00e9diane<\/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.cybermedian.com\/fr\/use-case-learn-by-examples\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cas d&#039;utilisation \u2014 Apprendre par des exemples - Cyberm\u00e9diane\" \/>\n<meta property=\"og:description\" content=\"Un cas d&#039;utilisation d\u00e9crit comment un utilisateur utilise un syst\u00e8me pour atteindre un objectif sp\u00e9cifique. Un diagramme de cas d&#039;utilisation se compose d&#039;un syst\u00e8me, de cas d&#039;utilisation li\u00e9s, et d&#039;acteurs, et les relie les uns aux autres afin de visualiser : qu&#039;est-ce qui est d\u00e9crit ? (le syst\u00e8me), qui utilise le syst\u00e8me ? (acteur) et ce que l&#039;acteur veut r\u00e9aliser ? 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