{"id":3481,"date":"2022-02-09T17:13:56","date_gmt":"2022-02-09T09:13:56","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/de\/?p=3481"},"modified":"2022-11-25T17:28:27","modified_gmt":"2022-11-25T09:28:27","slug":"include-and-extend-use-cases","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/de\/include-and-extend-use-cases\/","title":{"rendered":"Anwendungsf\u00e4lle \u201eEinbeziehen\u201c Und \u201eErweitern\u201c."},"content":{"rendered":"<p><span><span class=\"\">Ein\u00a0<\/span><\/span><a href=\"http:\/\/the%20document%20management%20system%20%28dms%29%20use%20case%20diagram%20below%20shows%20the%20actors%20and%20use%20cases%20of%20the%20system.%20in%20particular%2C%20there%20are%20containment%20and%20extension%20relationships%20between%20use%20cases.\/\"><span><span class=\"\">Anwendungsfall<\/span><\/span><\/a><span><span class=\"\">\u00a0beschreibt, wie ein Benutzer ein System verwendet, um ein bestimmtes Ziel zu erreichen.\u00a0<\/span>Ein Anwendungsfalldiagramm besteht aus dem System, den zugeh\u00f6rigen Anwendungsf\u00e4llen und Akteuren und setzt diese zueinander in Beziehung, um zu visualisieren: Was wird beschrieben?\u00a0(\u00a0<\/span><strong><span>System<\/span><\/strong><span>\u00a0), wer verwendet das System?\u00a0(\u00a0<\/span><strong><span>Schauspieler<\/span><\/strong><span>\u00a0) und was wollen die Schauspieler erreichen?\u00a0(\u00a0<\/span><strong><span>Use Cases<\/span><\/strong><span>\u00a0), Anwendungsf\u00e4lle helfen also sicherzustellen, dass das richtige System entwickelt wird, indem sie die Anforderungen aus Sicht des Benutzers erfassen.<\/span><\/p>\n<h3><img decoding=\"async\" id=\"thepasted-1\" class=\"center-img template-thumbnail\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/include-and-extend-use-case-diagram.png\" alt=\"Anwendungsfalldiagramm-Vorlage: Anwendungsfalldiagramm einschlie\u00dfen und erweitern (Erstellt vom Anwendungsfalldiagramm-Ersteller von Visual Paradigm Online)\" \/><\/h3>\n<h2 id=\"structuring-use-cases\"><span id=\"Structuring_Use_Cases\"><span>Anwendungsf\u00e4lle strukturieren<\/span><\/span><\/h2>\n<p><span>Anwendungsfallbeziehungen modellieren die Abh\u00e4ngigkeiten zwischen Anwendungsf\u00e4llen im Interaktionsmodell des Systems.\u00a0Unabh\u00e4ngige Anwendungsf\u00e4lle k\u00f6nnen jedoch einfachere Systeme angemessen darstellen.\u00a0Um jedoch komplexe oder gro\u00dfe Systeme darzustellen, m\u00fcssen wir m\u00f6glicherweise komplexe Anwendungsf\u00e4lle mit Hilfe von Abh\u00e4ngigkeiten zwischen Anwendungsf\u00e4llen konstruieren.\u00a0Das Herstellen von Beziehungen zwischen Anwendungsf\u00e4llen erm\u00f6glicht die Wiederverwendung von Anwendungsf\u00e4llen, die immer wieder neu definiert werden m\u00fcssen, was den Entwickleraufwand reduziert.<\/span><\/p>\n<p><span>UML definiert drei Stereotypen zur Strukturierung der Zuordnungen von Anwendungsf\u00e4llen.<\/span><\/p>\n<h3><span id=\"What_is_a_Include_Use_Case\"><span>Was ist ein &lt;&lt;Einschlie\u00dfen&gt;&gt;-Anwendungsfall?<\/span><\/span><\/h3>\n<p><span>Ein erweiterter Anwendungsfall ist effektiv ein alternativer Verlauf des Basisanwendungsfalls.\u00a0Der Anwendungsfall &lt;&lt;Erweitern&gt;&gt; erreicht dies durch das konzeptionelle Einf\u00fcgen zus\u00e4tzlicher Aktionssequenzen in die Basis-Anwendungsfallsequenz.<\/span><\/p>\n<p><span>Der Zeitpunkt f\u00fcr die Verwendung der &lt;&lt;include&gt;&gt;-Beziehung ist, nachdem Sie die erste Schnittbeschreibung aller Ihrer wichtigsten Anwendungsf\u00e4lle abgeschlossen haben.\u00a0Sie k\u00f6nnen sich jetzt die Anwendungsf\u00e4lle ansehen und allgemeine Sequenzen der Benutzer-System-Interaktion identifizieren.<\/span><\/p>\n<ul>\n<li><span>Wenn ein Anwendungsfall so dargestellt wird, dass er die Funktionalit\u00e4t eines anderen Anwendungsfalls verwendet, wird die Beziehung zwischen den Anwendungsf\u00e4llen als Include- oder Uses-Beziehung bezeichnet.<\/span><\/li>\n<li><span>Ein Anwendungsfall umfasst die in einem anderen Anwendungsfall beschriebene Funktionalit\u00e4t als Teil seines Gesch\u00e4ftsprozessflusses.<\/span><\/li>\n<li><span>Eine Verwendungsbeziehung vom Basisanwendungsfall zum untergeordneten Anwendungsfall gibt an, dass eine Instanz des Basisanwendungsfalls das im untergeordneten Anwendungsfall angegebene Verhalten enth\u00e4lt.<\/span><\/li>\n<li><span>Eine Include-Beziehung wird mit einem gerichteten Pfeil mit einer gepunkteten Linie dargestellt.\u00a0Die Spitze der Pfeilspitze zeigt auf den untergeordneten Anwendungsfall und den \u00fcbergeordneten Anwendungsfall, die an der Basis des Pfeils verbunden sind.<\/span><\/li>\n<li><span>Der Stereotyp \u201e&lt;&lt;include&gt;&gt;\u201c kennzeichnet die Beziehung als Include-Beziehung.<\/span><\/li>\n<\/ul>\n<h3><span id=\"Use_Case_Example_-_Include_Relationship\"><span>Anwendungsfallbeispiel \u2013 Beziehung einschlie\u00dfen<\/span><\/span><\/h3>\n<p><span>Die Include-Beziehung f\u00fcgt zus\u00e4tzliche Funktionalit\u00e4t hinzu, die nicht im Basisanwendungsfall angegeben ist.\u00a0Die Beziehung &lt;&lt;Include&gt;&gt; wird verwendet, um allgemeines Verhalten aus einem eingeschlossenen Anwendungsfall in einen Basisanwendungsfall einzuschlie\u00dfen, um die Wiederverwendung von allgemeinem Verhalten zu unterst\u00fctzen.<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-2\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/08-use-case-diagram-notation-include.png\" alt=\"Anwendungsfalldiagramm-Notation - Einschlie\u00dfen\" \/><\/p>\n<h3><span id=\"What_is_a_Extend_Use_Case\"><strong><span>Was ist ein &lt;&lt;Erweitern&gt;&gt; Anwendungsfall?<\/span><\/strong><\/span><\/h3>\n<p><img decoding=\"async\" id=\"thepasted-4\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/07-use-case-diagram-notation-extend.png\" alt=\"Notation von Anwendungsfalldiagrammen - Erweitern\" \/><\/p>\n<ul>\n<li><span>Gibt an, dass ein\u00a0 Anwendungsfall\u00a0<\/span><strong><span>\u201eUng\u00fcltiges Passwort\u201c<\/span><\/strong><span>\u00a0\u00a0(vorbehaltlich der Angabe in der Erweiterung) das durch den\u00a0\u00a0<\/span><strong><span>Basisanwendungsfall \u201eAnmeldekonto\u201c<\/span><\/strong><span>\u00a0festgelegte Verhalten beinhalten kann .<\/span><\/li>\n<li><span>Dargestellt mit einem gerichteten Pfeil mit einer gepunkteten Linie.\u00a0Die Spitze der Pfeilspitze zeigt auf den Basisanwendungsfall und der untergeordnete Anwendungsfall ist an der Basis des Pfeils verbunden.<\/span><\/li>\n<li><span>Das Stereotyp \u201e&lt;&lt;erweitert&gt;&gt;\u201c identifiziert sich als erweiterte Beziehung<\/span><\/li>\n<\/ul>\n<h4><span id=\"Extend_Relationship\"><span>Beziehung erweitern<\/span><\/span><\/h4>\n<p><span>Die Erweiterungsbeziehungen sind wichtig, da sie optionale Funktionalit\u00e4t oder Systemverhalten zeigen.\u00a0Die Beziehung &lt;&lt;extend&gt;&gt; wird verwendet, um optionales Verhalten aus einem erweiternden Anwendungsfall in einen erweiterten Anwendungsfall aufzunehmen.\u00a0Im obigen Beispiel gibt es einen erweiterten Konnektor mit einem Erweiterungspunkt \u201eUng\u00fcltiges Passwort\u201c.<\/span><\/p>\n<h3><span id=\"Abstract_and_generalized_Use_Case\"><span>Abstrakter und verallgemeinerter Anwendungsfall<\/span><\/span><\/h3>\n<p><span>Der allgemeine Anwendungsfall ist abstrakt.\u00a0Es kann nicht instanziiert werden, da es unvollst\u00e4ndige Informationen enth\u00e4lt.\u00a0Der Titel eines abstrakten Anwendungsfalls wird kursiv dargestellt.<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-5\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/08-use-case-diagram-notation-generalization.png\" alt=\"Notation von Anwendungsfalldiagrammen - Verallgemeinerung\" \/><\/p>\n<h2><span id=\"Use_Case_Diagram_Example\"><span>Beispiel f\u00fcr ein Anwendungsfalldiagramm<\/span><\/span><\/h2>\n<p><span>Dieses Beispiel eines Anwendungsfalldiagramms stellt ein Modell mehrerer Gesch\u00e4ftsanwendungsf\u00e4lle (Ziele) dar, die die Interaktion zwischen einem Restaurant (Gesch\u00e4ftssystem) und seinen wichtigsten Interessengruppen (Gesch\u00e4ftsteilnehmer und Gesch\u00e4ftsmitarbeiter) darstellen.\u00a0Nachdem wir die grundlegenden Anwendungsf\u00e4lle in der ersten K\u00fcrzungsrunde identifiziert haben, k\u00f6nnen wir diese Anwendungsf\u00e4lle vielleicht in der zweiten \u00dcberarbeitungsrunde mit Anwendungsf\u00e4llen \u201eerweitern\u201c und \u201eeinbeziehen\u201c weiter aufbauen.<\/span><\/p>\n<p><img decoding=\"async\" id=\"thepasted-6\" class=\"n3VNCb KAlRDb\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/Use-Case-Diagram-Include-and-Extend-Use-Cases.png\" alt=\"Anwendungsfalldiagramm, UML-Diagramme Beispiel: Anwendungsf\u00e4lle &quot;Einschlie\u00dfen&quot; und &quot;Erweitern&quot; - Visual Paradigm Community Circle\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Use case relationships model the dependencies between use cases in the interaction model of the system. Although, independent use cases can adequately represent simpler systems. However, in order to represent complex or large systems, we may need to construct complex use cases with the help of dependencies between use cases. Establishing relationships between use cases allows reuse of those use cases that need to be defined over and over again, which reduces developer effort.<\/p>\n","protected":false},"author":1,"featured_media":3608,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[36],"tags":[],"class_list":["post-3481","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","loop-entry","clr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Anwendungsf\u00e4lle \u201eEinbeziehen\u201c Und \u201eErweitern\u201c. - Visual Paradigm Bloggen<\/title>\n<meta name=\"description\" content=\"Use case relationships model the dependencies between use cases in the interaction model of the system. 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