PlantUML: hello world use case diagram

An actor can be defined

a.   By enclosing the actor name in colons (:)

b.   By enclosing the actor name in double quotes

c.    Using actor keyword

 

Use cases are defined by

a.   enclosing the use case name in parenthesis.

b.   Using usecase keyword.

 

 

We can connect an actor to a use case using an arrow (-->).

 

helloworld.txt

@startuml

actor passenger
actor admin
actor bank

usecase Login
usecase "Check for availability" as CFA
usecase "Book tiket" as BT
usecase Payment
usecase "Cancel Ticket" as CT
usecase "Check Flight Status" as CFS
usecase "Update Flight Schedule" as UFS
usecase "Validate Card details" as VCD

passenger --> Login
passenger --> CFA
passenger --> BT
passenger --> Payment
passenger --> CT
passenger --> CFS

admin --> UFS
admin --> CT

bank --> VCD

Payment --> VCD


@enduml

 

Above snippet generate below diagram

 

 

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