PlantUML Language specification Use Case Diagram

       

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Diagramme de cas d'utilisation

• Texte en entrée, diagramme en sortie. Définissez acteurs, cas d'utilisation et relations en quelques lignes.
• Facile à refactoriser. Renommer un acteur ou déplacer un cas d'utilisation revient à modifier une ligne.
• S'intègre à votre dépôt. Les diagrammes vivent à côté du code qu'ils documentent, sous gestion de versions.

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Cas d'utilisation

@startuml (First usecase) (Another usecase) as (UC2) usecase UC3 usecase (Last\nusecase) as UC4 @enduml

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Acteurs

@startuml :First Actor: :Another\nactor: as Man2 actor Woman3 actor :Last actor: as Person1 @enduml

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Changer le style d'acteur

• un awesome man avec la commande skinparam actorStyle awesome;
• un hollow man avec la commande skinparam actorStyle hollow .

Stick man (par défaut)

@startuml :User: --> (Use) "Main Admin" as Admin "Use the application" as (Use) Admin --> (Admin the application) @enduml

@startuml skinparam actorStyle awesome :User: --> (Use) "Main Admin" as Admin "Use the application" as (Use) Admin --> (Admin the application) @enduml

Homme creux

@startuml skinparam actorStyle Hollow :User: --> (Use) "Main Admin" as Admin "Use the application" as (Use) Admin --> (Admin the application) @enduml

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Description des cas d'utilisation

@startuml usecase UC1 as "You can use several lines to define your usecase. You can also use separators. -- Several separators are possible. == And you can add titles: ..Conclusion.. This allows large description." @enduml

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Utiliser un package

@startuml left to right direction actor Guest as g package Professional { actor Chef as c actor "Food Critic" as fc } package Restaurant { usecase "Eat Food" as UC1 usecase "Pay for Food" as UC2 usecase "Drink" as UC3 usecase "Review" as UC4 } fc --> UC4 g --> UC1 g --> UC2 g --> UC3 @enduml

@startuml left to right direction actor "Food Critic" as fc rectangle Restaurant { usecase "Eat Food" as UC1 usecase "Pay for Food" as UC2 usecase "Drink" as UC3 } fc --> UC1 fc --> UC2 fc --> UC3 @enduml

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Exemples très simples

@startuml User -> (Start) User --> (Use the application) : A small label :Main Admin: ---> (Use the application) : This is\nyet another\nlabel @enduml

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Héritage

@startuml :Main Admin: as Admin (Use the application) as (Use) User <|-- Admin (Start) <|-- (Use) @enduml

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Notes

@startuml :Main Admin: as Admin (Use the application) as (Use) User -> (Start) User --> (Use) Admin ---> (Use) note right of Admin : This is an example. note right of (Use) A note can also be on several lines end note note "This note is connected\nto several objects." as N2 (Start) .. N2 N2 .. (Use) @enduml

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Stéréotypes

@startuml User << Human >> :Main Database: as MySql << Application >> (Start) << One Shot >> (Use the application) as (Use) << Main >> User -> (Start) User --> (Use) MySql --> (Use) @enduml

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Changer les directions des flèches

@startuml :user: --> (Use case 1) :user: -> (Use case 2) @enduml

@startuml (Use case 1) <.. :user: (Use case 2) <- :user: @enduml

@startuml :user: -left-> (dummyLeft) :user: -right-> (dummyRight) :user: -up-> (dummyUp) :user: -down-> (dummyDown) @enduml

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Découper les diagrames

@startuml :actor1: --> (Usecase1) newpage :actor2: --> (Usecase2) @enduml

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De droite à gauche

@startuml 'default top to bottom direction user1 --> (Usecase 1) user2 --> (Usecase 2) @enduml

@startuml left to right direction user1 --> (Usecase 1) user2 --> (Usecase 2) @enduml

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La commande Skinparam

• Dans la définition du diagramme, comme pour les autres commandes,
• Dans un fichier inclus,
• Dans un fichier de configuration, renseigné dans la ligne de commande ou la tâche ANT.

@startuml skinparam handwritten true skinparam usecase { BackgroundColor DarkSeaGreen BorderColor DarkSlateGray BackgroundColor<< Main >> YellowGreen BorderColor<< Main >> YellowGreen ArrowColor Olive ActorBorderColor black ActorFontName Courier ActorBackgroundColor<< Human >> Gold } User << Human >> :Main Database: as MySql << Application >> (Start) << One Shot >> (Use the application) as (Use) << Main >> User -> (Start) User --> (Use) MySql --> (Use) @enduml

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Exemple complet

@startuml left to right direction skinparam packageStyle rectangle actor customer actor clerk rectangle checkout { customer -- (checkout) (checkout) .> (payment) : include (help) .> (checkout) : extends (checkout) -- clerk } @enduml

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Business Use Case

Business Use Case

@startuml (First usecase)/ (Another usecase)/ as (UC2) usecase/ UC3 usecase/ (Last\nusecase) as UC4 @enduml

Acteur commercial

@startuml :First Actor:/ :Another\nactor:/ as Man2 actor/ Woman3 actor/ :Last actor: as Person1 @enduml

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Modifier la couleur et le style des flèches (style en ligne)

• #color;line.[bold|dashed|dotted];text:color

@startuml actor foo foo --> (bar) : normal foo --> (bar1) #line:red;line.bold;text:red : red bold foo --> (bar2) #green;line.dashed;text:green : green dashed foo --> (bar3) #blue;line.dotted;text:blue : blue dotted @enduml

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Modifier la couleur et le style d'un élément (style en ligne)

• #[color|back:color];line:color;line.[bold|dashed|dotted];text:color

@startuml actor a actor b #pink;line:red;line.bold;text:red usecase c #palegreen;line:green;line.dashed;text:green usecase d #aliceblue;line:blue;line.dotted;text:blue @enduml

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Afficher les données JSON sur le diagramme Usecase

Exemple simple

@startuml allowmixing actor Actor usecase Usecase json JSON { "fruit":"Apple", "size":"Large", "color": ["Red", "Green"] } @enduml