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Diagrama de Secuencia

Sequence Diagram

Ejemplo básico

La secuencia -> es usada para dibujar un mensaje entre dos participantes. Los participantes tienen que ser declarados explícitamente.

Para definir una flecha punteada, se debe usar -->

También se puede usar <- y <--. No provoca cambios en el dibujo, pero puede mejorar la legibilidad. Tenga en cuenta que esto sólo es posible en diagramas de secuencia, las reglas son diferentes para otros diagramas. 

@startuml
Alice -> Bob: Authentication Request
Bob --> Alice: Authentication Response

Alice -> Bob: Another authentication Request
Alice <-- Bob: another authentication Response
@enduml

Basic examples

The sequence -> is used to draw a message between two participants. Participants do not have to be explicitly declared.

To have a dotted arrow, you use -->

It is also possible to use <- and <--. That does not change the drawing, but may improve readability. Note that this is only true for sequence diagrams, rules are different for the other diagrams. 

@startuml
Alice -> Bob: Authentication Request
Bob --> Alice: Authentication Response

Alice -> Bob: Another authentication Request
Alice <-- Bob: Another authentication Response
@enduml

Declarando participantes

Es posible cambiar el orden de los participantes usando la palabra reservada participant.

También es posible el uso de otras palabras reservadas para declarar un participante:
  • actor
  • boundary
  • control
  • entity
  • database
  • collections

@startuml
actor Foo1
boundary Foo2
control Foo3
entity Foo4
database Foo5
collections Foo6
Foo1 -> Foo2 : To boundary
Foo1 -> Foo3 : To control
Foo1 -> Foo4 : To entity
Foo1 -> Foo5 : To database
Foo1 -> Foo6 : To collections

@enduml

Se puede renombrar un participante usando la palabra reservada as.

También es posible cambiar el color de fondo de los actores o participantes. 

@startuml
actor Bob #red
' The only difference between actor
'and participant is the drawing
participant Alice
participant "I have a really\nlong name" as L #99FF99
/' You can also declare:
   participant L as "I have a really\nlong name"  #99FF99
  '/

Alice->Bob: Authentication Request
Bob->Alice: Authentication Response
Bob->L: Log transaction
@enduml

You can use the orderkeyword to custom the print order of participant. 

@startuml
participant Last order 30
participant Middle order 20
participant First order 10
@enduml

WARNING
 This translation need to be updated. 
WARNING

Declaring participant

If the keyword participant is used to declare a participant, more control on that participant is possible.

The order of declaration will be the (default) order of display.

Using these other keywords to declare participants will change the shape of the participant representation:
  • actor
  • boundary
  • control
  • entity
  • database
  • collections
  • queue

@startuml
participant participant as Foo
actor       actor       as Foo1
boundary    boundary    as Foo2
control     control     as Foo3
entity      entity      as Foo4
database    database    as Foo5
collections collections as Foo6
queue       queue       as Foo7
Foo -> Foo1 : To actor 
Foo -> Foo2 : To boundary
Foo -> Foo3 : To control
Foo -> Foo4 : To entity
Foo -> Foo5 : To database
Foo -> Foo6 : To collections
Foo -> Foo7: To queue
@enduml

Rename a participant using the as keyword.

You can also change the background color of actor or participant. 

@startuml
actor Bob #red
' The only difference between actor
'and participant is the drawing
participant Alice
participant "I have a really\nlong name" as L #99FF99
/' You can also declare:
   participant L as "I have a really\nlong name"  #99FF99
  '/

Alice->Bob: Authentication Request
Bob->Alice: Authentication Response
Bob->L: Log transaction
@enduml

You can use the order keyword to customize the display order of participants. 

@startuml
participant Last order 30
participant Middle order 20
participant First order 10
@enduml

Sin usar letras en participantes

Puedes usar comillas para definir participantes. Y puedes usar la palabra reservada as para asignar un alias a esos participantes. 

@startuml
Alice -> "Bob()" : Hello
"Bob()" -> "This is very\nlong" as Long
' You can also declare:
' "Bob()" -> Long as "This is very\nlong"
Long --> "Bob()" : ok
@enduml

Use non-letters in participants

You can use quotes to define participants. And you can use the as keyword to give an alias to those participants. 

@startuml
Alice -> "Bob()" : Hello
"Bob()" -> "This is very\nlong" as Long
' You can also declare:
' "Bob()" -> Long as "This is very\nlong"
Long --> "Bob()" : ok
@enduml

Auto-Mensaje

Un participante puede enviar mensajes asi mismo.

También es posible tener un mensaje multi-líneas usando \n. 

@startuml
Alice->Alice: This is a signal to self.\nIt also demonstrates\nmultiline \ntext
@enduml

Message to Self

A participant can send a message to itself.

It is also possible to have multi-line using \n. 

@startuml
Alice->Alice: This is a signal to self.\nIt also demonstrates\nmultiline \ntext
@enduml

Text alignment

Text of response message below the arrow

You can put the text of the response message below the arrow, with the skinparam responseMessageBelowArrow true command. 

@startuml
skinparam responseMessageBelowArrow true
Bob -> Alice : hello
Alice -> Bob : ok
@enduml

TODO
Link to Text Alignment on skinparam page.

Cambiar estilo de la flecha

Puede cambiar el estilo de la flecha de diferentes formas:
  • añade una x al final para indicar un mensaje perdido
  • utilice \ o / en lugar de < o > para tener solo la parte inferior o superior de la flecha
  • repite la cabeza de la flecha (por ejemplo, >> o //) para tener un trazo más fino
  • Utilice -- en lugar de - para obtener una flecha punteada.
  • añade una "o" al final de la cabeza de una flecha
  • utilice flechas bidireccionales <->

@startuml
Bob ->x Alice
Bob -> Alice
Bob ->> Alice
Bob -\ Alice
Bob \\- Alice
Bob //-- Alice

Bob ->o Alice
Bob o\\-- Alice

Bob <-> Alice
Bob <->o Alice
@enduml

Change arrow style

You can change arrow style by several ways:
  • add a final x to denote a lost message
  • use \ or / instead of < or > to have only the bottom or top part of the arrow
  • repeat the arrow head (for example, >> or //) head to have a thin drawing
  • use -- instead of - to have a dotted arrow
  • add a final "o" at arrow head
  • use bidirectional arrow <->

@startuml
Bob ->x Alice
Bob -> Alice
Bob ->> Alice
Bob -\ Alice
Bob \\- Alice
Bob //-- Alice

Bob ->o Alice
Bob o\\-- Alice

Bob <-> Alice
Bob <->o Alice
@enduml

Cambiar el color de la flecha

Puede cambiar el color de flechas individuales usando la siguiente notación: 

@startuml
Bob -[#red]> Alice : hello
Alice -[#0000FF]->Bob : ok
@enduml

Change arrow color

You can change the color of individual arrows using the following notation: 

@startuml
Bob -[#red]> Alice : hello
Alice -[#0000FF]->Bob : ok
@enduml

Numeración de la secuencia de mensajes

La palabra clave autonumber es usada para añadir automáticamente números a los mensajes. 

@startuml
autonumber
Bob -> Alice : Authentication Request
Bob <- Alice : Authentication Response
@enduml

Puedes especificar un número de comienzo con autonumber //número inicial// , y también un incremento con autonumber //número inicial// //incremento//. 

@startuml
autonumber
Bob -> Alice : Authentication Request
Bob <- Alice : Authentication Response

autonumber 15
Bob -> Alice : Another authentication Request
Bob <- Alice : Another authentication Response

autonumber 40 10
Bob -> Alice : Yet another authentication Request
Bob <- Alice : Yet another authentication Response

@enduml

Puedes especificar un formato para su número usándolo entre comillas dobles.

El formateo se hace mediante la calse Java DecimalFormat (0 denota un dígito, # denota un digito y cero si está ausente).

Puedes usar alguna etiqueta HTML en el formato. 

@startuml
autonumber "<b>[000]"
Bob -> Alice : Authentication Request
Bob <- Alice : Authentication Response

autonumber 15 "<b>(<u>##</u>)"
Bob -> Alice : Another authentication Request
Bob <- Alice : Another authentication Response

autonumber 40 10 "<font color=red><b>Message 0  "
Bob -> Alice : Yet another authentication Request
Bob <- Alice : Yet another authentication Response

@enduml

También puedes usar autonumber stop y autonumber resume //increment// //format// para pausar y continuar la numeración automática, respectivamente. 

@startuml
autonumber 10 10 "<b>[000]"
Bob -> Alice : Authentication Request
Bob <- Alice : Authentication Response

autonumber stop
Bob -> Alice : dummy

autonumber resume "<font color=red><b>Message 0  "
Bob -> Alice : Yet another authentication Request
Bob <- Alice : Yet another authentication Response

autonumber stop
Bob -> Alice : dummy

autonumber resume 1 "<font color=blue><b>Message 0  "
Bob -> Alice : Yet another authentication Request
Bob <- Alice : Yet another authentication Response
@enduml

Message sequence numbering

The keyword autonumber is used to automatically add number to messages. 

@startuml
autonumber
Bob -> Alice : Authentication Request
Bob <- Alice : Authentication Response
@enduml

You can specify a startnumber with autonumber //start// , and also an increment with autonumber //start// //increment//. 

@startuml
autonumber
Bob -> Alice : Authentication Request
Bob <- Alice : Authentication Response

autonumber 15
Bob -> Alice : Another authentication Request
Bob <- Alice : Another authentication Response

autonumber 40 10
Bob -> Alice : Yet another authentication Request
Bob <- Alice : Yet another authentication Response

@enduml

You can specify a format for your number by using between double-quote.

The formatting is done with the Java class DecimalFormat (0 means digit, # means digit and zero if absent).

You can use some html tag in the format. 

@startuml
autonumber "<b>[000]"
Bob -> Alice : Authentication Request
Bob <- Alice : Authentication Response

autonumber 15 "<b>(<u>##</u>)"
Bob -> Alice : Another authentication Request
Bob <- Alice : Another authentication Response

autonumber 40 10 "<font color=red><b>Message 0  "
Bob -> Alice : Yet another authentication Request
Bob <- Alice : Yet another authentication Response

@enduml

You can also use autonumber stop and autonumber resume //increment// //format// to respectively pause and resume automatic numbering. 

@startuml
autonumber 10 10 "<b>[000]"
Bob -> Alice : Authentication Request
Bob <- Alice : Authentication Response

autonumber stop
Bob -> Alice : dummy

autonumber resume "<font color=red><b>Message 0  "
Bob -> Alice : Yet another authentication Request
Bob <- Alice : Yet another authentication Response

autonumber stop
Bob -> Alice : dummy

autonumber resume 1 "<font color=blue><b>Message 0  "
Bob -> Alice : Yet another authentication Request
Bob <- Alice : Yet another authentication Response
@enduml

Page Title, Header and Footer

The title keyword is used to add a title to the page.

Pages can display headers and footers using header and footer. 

@startuml

header Page Header
footer Page %page% of %lastpage%

title Example Title

Alice -> Bob : message 1
Alice -> Bob : message 2

@enduml

Page Title, Header and Footer

The title keyword is used to add a title to the page.

Pages can display headers and footers using header and footer. 

@startuml

header Page Header
footer Page %page% of %lastpage%

title Example Title

Alice -> Bob : message 1
Alice -> Bob : message 2

@enduml

Dividiendo diagramas

La palabra reservada newpage es empleada para dividir un diagrama en varias imágenes.

Puedes colocar un título para la página nueva justo después de la palabra reservada newpage .

Esto es bastante práctico con Word para devolver diagramas grandes en varias páginas. 

@startuml

Alice -> Bob : message 1
Alice -> Bob : message 2

newpage

Alice -> Bob : message 3
Alice -> Bob : message 4

newpage A title for the\nlast page

Alice -> Bob : message 5
Alice -> Bob : message 6
@enduml

Splitting diagrams

The newpage keyword is used to split a diagram into several images.

You can put a title for the new page just after the newpage keyword. This title overrides the previously specified title if any.

This is very handy with Word to print long diagram on several pages.

(Note: this really does work. Only the first page is shown below, but it is a display artifact.) 

@startuml

Alice -> Bob : message 1
Alice -> Bob : message 2

newpage

Alice -> Bob : message 3
Alice -> Bob : message 4

newpage A title for the\nlast page

Alice -> Bob : message 5
Alice -> Bob : message 6
@enduml

Agrupando mensajes

Es posible agrupar mensajes usando las siguientes palabras reservadas:
  • alt/else
  • opt
  • loop
  • par
  • break
  • critical
  • group, seguida de un texto para mostrar

Es posible añadir un texto que será mostrado en el encabezado (excepto para group).

La palabra reservada end es usada para cerrar el grupo.

Tenga en cuenta que es posible anidar grupos. 

@startuml
Alice -> Bob: Authentication Request

alt successful case

    Bob -> Alice: Authentication Accepted

else some kind of failure

    Bob -> Alice: Authentication Failure
    group My own label
    Alice -> Log : Log attack start
        loop 1000 times
            Alice -> Bob: DNS Attack
        end
    Alice -> Log : Log attack end
    end

else Another type of failure

   Bob -> Alice: Please repeat

end
@enduml

WARNING
 This translation need to be updated. 
WARNING

Grouping message

It is possible to group messages together using the following keywords:
  • alt/else
  • opt
  • loop
  • par
  • break
  • critical
  • group, followed by a text to be displayed

It is possible to add a text that will be displayed into the header (for group, see next paragraph 'Secondary group label').

The end keyword is used to close the group.

Note that it is possible to nest groups. 

@startuml
Alice -> Bob: Authentication Request

alt successful case

    Bob -> Alice: Authentication Accepted

else some kind of failure

    Bob -> Alice: Authentication Failure
    group My own label
    Alice -> Log : Log attack start
        loop 1000 times
            Alice -> Bob: DNS Attack
        end
    Alice -> Log : Log attack end
    end

else Another type of failure

   Bob -> Alice: Please repeat

end
@enduml

Secondary group label

For group, it is possible to add, between[ and ], a secondary text or label that will be displayed into the header. 

@startuml
Alice -> Bob: Authentication Request
Bob -> Alice: Authentication Failure
group My own label [My own label 2]
    Alice -> Log : Log attack start
    loop 1000 times
        Alice -> Bob: DNS Attack
    end
    Alice -> Log : Log attack end
end
@enduml

[Ref. QA-2503]

Notas en mensajes

Es posible colocar notas en mensajes usando las palabras reservadas note left o note right inmediatamente después del mensaje.

Puedes tener una nota multi-líneas usando la palabra reservada end note . 

@startuml
Alice->Bob : hello
note left: this is a first note

Bob->Alice : ok
note right: this is another note

Bob->Bob : I am thinking
note left
a note
can also be defined
on several lines
end note
@enduml

Notes on messages

It is possible to put notes on message using the note left or note right keywords just after the message.

You can have a multi-line note using the end note keywords. 

@startuml
Alice->Bob : hello
note left: this is a first note

Bob->Alice : ok
note right: this is another note

Bob->Bob : I am thinking
note left
a note
can also be defined
on several lines
end note
@enduml

Algunas otras notas

También es posible colocar notas relativas al participante con las palabras reservadas <code>note left of</code> , note right of o note over .

Es posible resaltar una nota cambiando su color de fondo.

También puedes tener una nota multi-líneas usando la palabra reservada end note . 

@startuml
participant Alice
participant Bob
note left of Alice #aqua
This is displayed
left of Alice.
end note

note right of Alice: This is displayed right of Alice.

note over Alice: This is displayed over Alice.

note over Alice, Bob #FFAAAA: This is displayed\n over Bob and Alice.

note over Bob, Alice
This is yet another
example of
a long note.
end note
@enduml

Some other notes

It is also possible to place notes relative to participant with note left of , note right of or note over keywords.

It is possible to highlight a note by changing its background color.

You can also have a multi-line note using the end note keywords. 

@startuml
participant Alice
participant Bob
note left of Alice #aqua
This is displayed
left of Alice.
end note

note right of Alice: This is displayed right of Alice.

note over Alice: This is displayed over Alice.

note over Alice, Bob #FFAAAA: This is displayed\n over Bob and Alice.

note over Bob, Alice
This is yet another
example of
a long note.
end note
@enduml

Cambiando el aspecto de las notas

Puedes usar las palabras reservadas hnote y rnote para cambiar el aspecto de las notas. 

@startuml
caller -> server : conReq
hnote over caller : idle
caller <- server : conConf
rnote over server
 "r" as rectangle
 "h" as hexagon
endrnote
@enduml

Changing notes shape

You can use hnote and rnote keywords to change note shapes. 

@startuml
caller -> server : conReq
hnote over caller : idle
caller <- server : conConf
rnote over server
 "r" as rectangle
 "h" as hexagon
endrnote
@enduml

Creole y HTML

También es posible usar sintexis de WikiCreole: 

@startuml
participant Alice
participant "The **Famous** Bob" as Bob

Alice -> Bob : hello --there--
... Some ~~long delay~~ ...
Bob -> Alice : ok
note left
  This is **bold**
  This is //italics//
  This is ""monospaced""
  This is --stroked--
  This is __underlined__
  This is ~~waved~~
end note

Alice -> Bob : A //well formatted// message
note right of Alice
 This is <back:cadetblue><size:18>displayed</size></back>
 __left of__ Alice.
end note
note left of Bob
 <u:red>This</u> is <color #118888>displayed</color>
 **<color purple>left of</color> <s:red>Alice</strike> Bob**.
end note
note over Alice, Bob
 <w:#FF33FF>This is hosted</w> by <img sourceforge.jpg>
end note
@enduml

Creole and HTML

It is also possible to use creole formatting: 

@startuml
participant Alice
participant "The **Famous** Bob" as Bob

Alice -> Bob : hello --there--
... Some ~~long delay~~ ...
Bob -> Alice : ok
note left
  This is **bold**
  This is //italics//
  This is ""monospaced""
  This is --stroked--
  This is __underlined__
  This is ~~waved~~
end note

Alice -> Bob : A //well formatted// message
note right of Alice
 This is <back:cadetblue><size:18>displayed</size></back>
 __left of__ Alice.
end note
note left of Bob
 <u:red>This</u> is <color #118888>displayed</color>
 **<color purple>left of</color> <s:red>Alice</strike> Bob**.
end note
note over Alice, Bob
 <w:#FF33FF>This is hosted</w> by <img sourceforge.jpg>
end note
@enduml

Divisor

Si quieres, puedes dividir un diagrama usando el separador == para separar su diagrama en pasos lógicos. 

@startuml

== Initialization ==

Alice -> Bob: Authentication Request
Bob --> Alice: Authentication Response

== Repetition ==

Alice -> Bob: Another authentication Request
Alice <-- Bob: another authentication Response

@enduml

WARNING
 This translation need to be updated. 
WARNING

Divider or separator

If you want, you can split a diagram using == separator to divide your diagram into logical steps. 

@startuml

== Initialization ==

Alice -> Bob: Authentication Request
Bob --> Alice: Authentication Response

== Repetition ==

Alice -> Bob: Another authentication Request
Alice <-- Bob: another authentication Response

@enduml

Referencia

Puedes referenciar en un diagrama utilizando la palabra clave ref over. 

@startuml
participant Alice
actor Bob

ref over Alice, Bob : init

Alice -> Bob : hello

ref over Bob
  This can be on
  several lines
end ref
@enduml

Reference

You can use reference in a diagram, using the keyword ref over. 

@startuml
participant Alice
actor Bob

ref over Alice, Bob : init

Alice -> Bob : hello

ref over Bob
  This can be on
  several lines
end ref
@enduml

Retardo

Puedes usar ... para indicar un retardo en el diagrama. Y también es posible colocar un mensaje con ese retardo. 

@startuml

Alice -> Bob: Authentication Request
...
Bob --> Alice: Authentication Response
...5 minutes latter...
Bob --> Alice: Bye !

@enduml

Delay

You can use ... to indicate a delay in the diagram. And it is also possible to put a message with this delay. 

@startuml

Alice -> Bob: Authentication Request
...
Bob --> Alice: Authentication Response
...5 minutes later...
Bob --> Alice: Good Bye !

@enduml

Text wrapping

To break long messages, you can manually add \n in your text.

Another option is to use maxMessageSize setting: 

@startuml
skinparam maxMessageSize 50
participant a
participant b
a -> b :this\nis\nmanually\ndone
a -> b :this is a very long message on several words
@enduml

Espaciado

Puedes usar ||| para indicar espaciado en el diagrama.

También es posible especificar un número de píxel para ser usado. 

@startuml

Alice -> Bob: message 1
Bob --> Alice: ok
|||
Alice -> Bob: message 2
Bob --> Alice: ok
||45||
Alice -> Bob: message 3
Bob --> Alice: ok

@enduml

Space

You can use ||| to indicate some spacing in the diagram.

It is also possible to specify a number of pixel to be used. 

@startuml

Alice -> Bob: message 1
Bob --> Alice: ok
|||
Alice -> Bob: message 2
Bob --> Alice: ok
||45||
Alice -> Bob: message 3
Bob --> Alice: ok

@enduml

Activación y Destrucción de la Línea de vida

activate y deactivate son usados para denotar la activación de un participante.

Una vez que un participante es activado, su línea de vida aparece.

activate y deactivate aplica en el mensaje anterior.

destroy denota el final de la línea de vida de un participante. 

@startuml
participant User

User -> A: DoWork
activate A

A -> B: << createRequest >>
activate B

B -> C: DoWork
activate C
C --> B: WorkDone
destroy C

B --> A: RequestCreated
deactivate B

A -> User: Done
deactivate A

@enduml

Puede usarse anidamiento de líneas de vida, y es posible agregar un color a dicha línea de vida. 

@startuml
participant User

User -> A: DoWork
activate A #FFBBBB

A -> A: Internal call
activate A #DarkSalmon

A -> B: << createRequest >>
activate B

B --> A: RequestCreated
deactivate B
deactivate A
A -> User: Done
deactivate A

@enduml

Lifeline Activation and Destruction

The activate and deactivate are used to denote participant activation.

Once a participant is activated, its lifeline appears.

The activate and deactivate apply on the previous message.

The destroy denote the end of the lifeline of a participant. 

@startuml
participant User

User -> A: DoWork
activate A

A -> B: << createRequest >>
activate B

B -> C: DoWork
activate C
C --> B: WorkDone
destroy C

B --> A: RequestCreated
deactivate B

A -> User: Done
deactivate A

@enduml

Nested lifeline can be used, and it is possible to add a color on the lifeline. 

@startuml
participant User

User -> A: DoWork
activate A #FFBBBB

A -> A: Internal call
activate A #DarkSalmon

A -> B: << createRequest >>
activate B

B --> A: RequestCreated
deactivate B
deactivate A
A -> User: Done
deactivate A

@enduml

Autoactivation is possible and works with the return keywords: 

@startuml
autoactivate on
alice -> bob : hello
bob -> bob : self call
bill -> bob #005500 : hello from thread 2
bob -> george ** : create
return done in thread 2
return rc
bob -> george !! : delete
return success

@enduml

Return

A new command return for generating a return message with optional text label. The point returned to is the point that cause the most recently activated life-line. The syntax is simply return label where label, if provided, can be any string acceptable on conventional messages. 

@startuml
Bob -> Alice : hello
activate Alice
Alice -> Alice : some action
return bye
@enduml

Return

Command return generates a return message with optional text label.

The return point is that which caused the most recent life-line activation.

The syntax is return label where label if provided is any string acceptable for conventional messages. 

@startuml
Bob -> Alice : hello
activate Alice
Alice -> Alice : some action
return bye
@enduml

Creación de participante

Puedes usar la palabra reservada create justo antes de la primera recepción de un mensaje para recalcar el hecho de que ese mensaje se encuentra creando ese nuevo objeto. 

@startuml
Bob -> Alice : hello

create Other
Alice -> Other : new

create control String
Alice -> String
note right : You can also put notes!

Alice --> Bob : ok

@enduml

Participant creation

You can use the create keyword just before the first reception of a message to emphasize the fact that this message is actually creating this new object. 

@startuml
Bob -> Alice : hello

create Other
Alice -> Other : new

create control String
Alice -> String
note right : You can also put notes!

Alice --> Bob : ok

@enduml

Shortcut syntax for activation, deactivation, creation

Immediately after specifying the target participant, the following syntax can be used:

  • ++ Activate the target (optionally a #color may follow this)
  • -- Deactivate the source
  • ** Create an instance of the target
  • !! Destroy an instance of the target

@startuml
alice -> bob ++ : hello
bob -> bob ++ : self call
bob -> bib ++  #005500 : hello
bob -> george ** : create
return done
return rc
bob -> george !! : delete
return success
@enduml

Mensajes entrantes y salientes

Puedes usar flechas entrantes y salientes si quieres centrarte en una parte del diagrama.

Utilice corchetes para denotar el lado izquierdo "[" o el lado derecho "]" del diagrama. 

@startuml
[-> A: DoWork

activate A

A -> A: Internal call
activate A

A ->] : << createRequest >>

A<--] : RequestCreated
deactivate A
[<- A: Done
deactivate A
@enduml

También puedes tener la siguiente sintaxis: 

@startuml
[-> Bob
[o-> Bob
[o->o Bob
[x-> Bob

[<- Bob
[x<- Bob

Bob ->]
Bob ->o]
Bob o->o]
Bob ->x]

Bob <-]
Bob x<-]
@enduml

WARNING
 This translation need to be updated. 
WARNING

Incoming and outgoing messages

You can use incoming or outgoing arrows if you want to focus on a part of the diagram.

Use square brackets to denote the left "[" or the right "]" side of the diagram. 

@startuml
[-> A: DoWork

activate A

A -> A: Internal call
activate A

A ->] : << createRequest >>

A<--] : RequestCreated
deactivate A
[<- A: Done
deactivate A
@enduml

You can also have the following syntax: 

@startuml
participant Alice
participant Bob #lightblue
Alice -> Bob
Bob -> Carol
...
[-> Bob
[o-> Bob
[o->o Bob
[x-> Bob
...
[<- Bob
[x<- Bob
...
Bob ->]
Bob ->o]
Bob o->o]
Bob ->x]
...
Bob <-]
Bob x<-]

@enduml

Short arrows for incoming and outgoing messages

You can have short arrows with using ?. 

@startuml
?-> Alice    : ""?->""\n**short** to actor1
[-> Alice    : ""[->""\n**from start** to actor1
[-> Bob      : ""[->""\n**from start** to actor2
?-> Bob      : ""?->""\n**short** to actor2
Alice ->]    : ""->]""\nfrom actor1 **to end**
Alice ->?    : ""->?""\n**short** from actor1
Alice -> Bob : ""->"" \nfrom actor1 to actor2
@enduml

[Ref. QA-310]

Anchors and Duration

With teoz usage it is possible to add anchors to the diagram and use the anchors to specify duration time. 

@startuml
!pragma teoz true

{start} Alice -> Bob : start doing things during duration
Bob -> Max : something
Max -> Bob : something else
{end} Bob -> Alice : finish

{start} <-> {end} : some time

@enduml

Estereotipos y marcas

Es posible añadir estereotipos a participantes usando << y >>.

En el estereotipo, puedes añadir un carácter marcado en un círculo coloreado usando la sintaxis (X,color). 

@startuml

participant "Famous Bob" as Bob << Generated >>
participant Alice << (C,#ADD1B2) Testable >>

Bob->Alice: First message

@enduml

Por defecto, guillemet (comillas) son usadas para mostrar el estereotipo. Puedes cambiar este comportamiento usando skinparam guillemet: 

@startuml

skinparam guillemet false
participant "Famous Bob" as Bob << Generated >>
participant Alice << (C,#ADD1B2) Testable >>

Bob->Alice: First message

@enduml


@startuml

participant Bob << (C,#ADD1B2) >>
participant Alice << (C,#ADD1B2) >>

Bob->Alice: First message

@enduml

Stereotypes and Spots

It is possible to add stereotypes to participants using << and >>.

In the stereotype, you can add a spotted character in a colored circle using the syntax (X,color). 

@startuml

participant "Famous Bob" as Bob << Generated >>
participant Alice << (C,#ADD1B2) Testable >>

Bob->Alice: First message

@enduml

By default, the guillemet character is used to display the stereotype. You can change this behavious using the skinparam guillemet: 

@startuml

skinparam guillemet false
participant "Famous Bob" as Bob << Generated >>
participant Alice << (C,#ADD1B2) Testable >>

Bob->Alice: First message

@enduml


@startuml

participant Bob << (C,#ADD1B2) >>
participant Alice << (C,#ADD1B2) >>

Bob->Alice: First message

@enduml

Mayor información en los títulos

Puedes usar sintaxis de Creole en el título. 

@startuml

title __Simple__ **communication** example

Alice -> Bob: Authentication Request
Bob -> Alice: Authentication Response

@enduml

Puedes añadir una nueva línea usando \n en la descripción del título. 

@startuml

title __Simple__ communication example\non several lines

Alice -> Bob: Authentication Request
Bob -> Alice: Authentication Response

@enduml

Además puedes definir un título en varias líneas usando las palabras reservadas title y end title . 

@startuml

title
 <u>Simple</u> communication example
 on <i>several</i> lines and using <font color=red>html</font>
 This is hosted by <img:sourceforge.jpg>
end title

Alice -> Bob: Authentication Request
Bob -> Alice: Authentication Response

@enduml

More information on titles

You can use creole formatting in the title. 

@startuml

title __Simple__ **communication** example

Alice -> Bob: Authentication Request
Bob -> Alice: Authentication Response

@enduml

You can add newline using \n in the title description. 

@startuml

title __Simple__ communication example\non several lines

Alice -> Bob: Authentication Request
Bob -> Alice: Authentication Response

@enduml

You can also define title on several lines using title and end title keywords. 

@startuml

title
 <u>Simple</u> communication example
 on <i>several</i> lines and using <font color=red>html</font>
 This is hosted by <img:sourceforge.jpg>
end title

Alice -> Bob: Authentication Request
Bob -> Alice: Authentication Response

@enduml

Entorno de participante

Es posible dibujar una caja alrededor de algunos participantes, usando los comandos box y end box .

Puedes añadir un título opcional o un color de fondo opcional, después de la palabra reservada box . 

@startuml

box "Internal Service" #LightBlue
participant Bob
participant Alice
end box
participant Other

Bob -> Alice : hello
Alice -> Other : hello

@enduml

Participants encompass

It is possible to draw a box around some participants, using box and end box commands.

You can add an optional title or a optional background color, after the box keyword. 

@startuml

box "Internal Service" #LightBlue
participant Bob
participant Alice
end box
participant Other

Bob -> Alice : hello
Alice -> Other : hello

@enduml

Removiendo pie de página

Puedes usar las palabras reservadas hide footbox para remover el pie de página del diagrama. 

@startuml

hide footbox
title Footer removed

Alice -> Bob: Authentication Request
Bob --> Alice: Authentication Response

@enduml

Removing Foot Boxes

You can use the hide footbox keywords to remove the foot boxes of the diagram. 

@startuml

hide footbox
title Foot Box removed

Alice -> Bob: Authentication Request
Bob --> Alice: Authentication Response

@enduml

Personalización (Skinparam)

Puedes usar el comando skinparam para cambiar los colores y las fuentes de los dibujos

Puedes usar este comando:

También puedes cambiar otros parámetros de renderización, como se ve en los siguientes ejemplos 

@startuml
skinparam sequenceArrowThickness 2
skinparam roundcorner 20
skinparam maxmessagesize 60
skinparam sequenceParticipant underline

actor User
participant "First Class" as A
participant "Second Class" as B
participant "Last Class" as C

User -> A: DoWork
activate A

A -> B: Create Request
activate B

B -> C: DoWork
activate C
C --> B: WorkDone
destroy C

B --> A: Request Created
deactivate B

A --> User: Done
deactivate A

@enduml


@startuml
skinparam backgroundColor #EEEBDC
skinparam handwritten true

skinparam sequence {
ArrowColor DeepSkyBlue
ActorBorderColor DeepSkyBlue
LifeLineBorderColor blue
LifeLineBackgroundColor #A9DCDF

ParticipantBorderColor DeepSkyBlue
ParticipantBackgroundColor DodgerBlue
ParticipantFontName Impact
ParticipantFontSize 17
ParticipantFontColor #A9DCDF

ActorBackgroundColor aqua
ActorFontColor DeepSkyBlue
ActorFontSize 17
ActorFontName Aapex
}

actor User
participant "First Class" as A
participant "Second Class" as B
participant "Last Class" as C

User -> A: DoWork
activate A

A -> B: Create Request
activate B

B -> C: DoWork
activate C
C --> B: WorkDone
destroy C

B --> A: Request Created
deactivate B

A --> User: Done
deactivate A

@enduml

Skinparam

You can use the skinparam command to change colors and fonts for the drawing.

You can use this command:

You can also change other rendering parameter, as seen in the following examples: 

@startuml
skinparam sequenceArrowThickness 2
skinparam roundcorner 20
skinparam maxmessagesize 60
skinparam sequenceParticipant underline

actor User
participant "First Class" as A
participant "Second Class" as B
participant "Last Class" as C

User -> A: DoWork
activate A

A -> B: Create Request
activate B

B -> C: DoWork
activate C
C --> B: WorkDone
destroy C

B --> A: Request Created
deactivate B

A --> User: Done
deactivate A

@enduml


@startuml
skinparam backgroundColor #EEEBDC
skinparam handwritten true

skinparam sequence {
ArrowColor DeepSkyBlue
ActorBorderColor DeepSkyBlue
LifeLineBorderColor blue
LifeLineBackgroundColor #A9DCDF

ParticipantBorderColor DeepSkyBlue
ParticipantBackgroundColor DodgerBlue
ParticipantFontName Impact
ParticipantFontSize 17
ParticipantFontColor #A9DCDF

ActorBackgroundColor aqua
ActorFontColor DeepSkyBlue
ActorFontSize 17
ActorFontName Aapex
}

actor User
participant "First Class" as A
participant "Second Class" as B
participant "Last Class" as C

User -> A: DoWork
activate A

A -> B: Create Request
activate B

B -> C: DoWork
activate C
C --> B: WorkDone
destroy C

B --> A: Request Created
deactivate B

A --> User: Done
deactivate A

@enduml

Cambiando el relleno

Es posible ajustar algunos parámetros de relleno 

@startuml
skinparam ParticipantPadding 20
skinparam BoxPadding 10

box "Foo1"
participant Alice1
participant Alice2
end box
box "Foo2"
participant Bob1
participant Bob2
end box
Alice1 -> Bob1 : hello
Alice1 -> Out : out
@enduml

Changing padding

It is possible to tune some padding settings. 

@startuml
skinparam ParticipantPadding 20
skinparam BoxPadding 10

box "Foo1"
participant Alice1
participant Alice2
end box
box "Foo2"
participant Bob1
participant Bob2
end box
Alice1 -> Bob1 : hello
Alice1 -> Out : out
@enduml

Appendice: Examples of all arrow type

Normal arrow

@startuml
participant Alice as a
participant Bob   as b
a ->     b : ""->   ""
a ->>    b : ""->>  ""
a -\     b : ""-\   ""
a -\\    b : ""-\\\\""
a -/     b : ""-/   ""
a -//    b : ""-//  ""
a ->x    b : ""->x  ""
a x->    b : ""x->  ""
a o->    b : ""o->  ""
a ->o    b : ""->o  ""
a o->o   b : ""o->o ""
a <->    b : ""<->  ""
a o<->o  b : ""o<->o""
a x<->x  b : ""x<->x""
a ->>o   b : ""->>o ""
a -\o    b : ""-\o  ""
a -\\o   b : ""-\\\\o""
a -/o    b : ""-/o  ""
a -//o   b : ""-//o ""
a x->o   b : ""x->o ""
@enduml

Incoming and outgoing messages (with '[', ']')

Incoming messages (with '[')

@startuml
participant Alice as a
participant Bob   as b
[->      b : ""[->   ""
[->>     b : ""[->>  ""
[-\      b : ""[-\   ""
[-\\     b : ""[-\\\\""
[-/      b : ""[-/   ""
[-//     b : ""[-//  ""
[->x     b : ""[->x  ""
[x->     b : ""[x->  ""
[o->     b : ""[o->  ""
[->o     b : ""[->o  ""
[o->o    b : ""[o->o ""
[<->     b : ""[<->  ""
[o<->o   b : ""[o<->o""
[x<->x   b : ""[x<->x""
[->>o    b : ""[->>o ""
[-\o     b : ""[-\o  ""
[-\\o    b : ""[-\\\\o""
[-/o     b : ""[-/o  ""
[-//o    b : ""[-//o ""
[x->o    b : ""[x->o ""
@enduml

Outgoing messages (with ']')

@startuml
participant Alice as a
participant Bob   as b
a ->]      : ""->]   ""
a ->>]     : ""->>]  ""
a -\]      : ""-\]   ""
a -\\]     : ""-\\\\]""
a -/]      : ""-/]   ""
a -//]     : ""-//]  ""
a ->x]     : ""->x]  ""
a x->]     : ""x->]  ""
a o->]     : ""o->]  ""
a ->o]     : ""->o]  ""
a o->o]    : ""o->o] ""
a <->]     : ""<->]  ""
a o<->o]   : ""o<->o]""
a x<->x]   : ""x<->x]""
a ->>o]    : ""->>o] ""
a -\o]     : ""-\o]  ""
a -\\o]    : ""-\\\\o]""
a -/o]     : ""-/o]  ""
a -//o]    : ""-//o] ""
a x->o]    : ""x->o] ""
@enduml

Short incoming and outgoing messages (with '?')

Short incoming (with '?')

@startuml
participant Alice as a
participant Bob   as b
a ->     b : //Long long label//
?->      b : ""?->   ""
?->>     b : ""?->>  ""
?-\      b : ""?-\   ""
?-\\     b : ""?-\\\\""
?-/      b : ""?-/   ""
?-//     b : ""?-//  ""
?->x     b : ""?->x  ""
?x->     b : ""?x->  ""
?o->     b : ""?o->  ""
?->o     b : ""?->o  ""
?o->o    b : ""?o->o ""
?<->     b : ""?<->  ""
?o<->o   b : ""?o<->o""
?x<->x   b : ""?x<->x""
?->>o    b : ""?->>o ""
?-\o     b : ""?-\o  ""
?-\\o    b : ""?-\\\\o ""
?-/o     b : ""?-/o  ""
?-//o    b : ""?-//o ""
?x->o    b : ""?x->o ""
@enduml

Short outgoing (with '?')

@startuml
participant Alice as a
participant Bob   as b
a ->     b : //Long long label//
a ->?      : ""->?   ""
a ->>?     : ""->>?  ""
a -\?      : ""-\?   ""
a -\\?     : ""-\\\\?""
a -/?      : ""-/?   ""
a -//?     : ""-//?  ""
a ->x?     : ""->x?  ""
a x->?     : ""x->?  ""
a o->?     : ""o->?  ""
a ->o?     : ""->o?  ""
a o->o?    : ""o->o? ""
a <->?     : ""<->?  ""
a o<->o?   : ""o<->o?""
a x<->x?   : ""x<->x?""
a ->>o?    : ""->>o? ""
a -\o?     : ""-\o?  ""
a -\\o?    : ""-\\\\o?""
a -/o?     : ""-/o?  ""
a -//o?    : ""-//o? ""
a x->o?    : ""x->o? ""
@enduml

Specific SkinParameter

By default

@startuml
Bob -> Alice : hello
Alice -> Bob : ok
@enduml

lifelineStrategy solid

In order to have solid life line in sequence diagrams, you can use:
  • skinparam lifelineStrategy solid

@startuml
skinparam lifelineStrategy solid
Bob -> Alice : hello
Alice -> Bob : ok
@enduml

[Ref. QA-2794]

style strictuml

To be conform to strict UML (for arrow style: emits triangle rather than sharp arrowheads), you can use:
  • skinparam style strictuml

@startuml
skinparam style strictuml
Bob -> Alice : hello
Alice -> Bob : ok
@enduml

[Ref. QA-1047]

Hide unlinked participant

By default, all participants are displayed. 

@startuml
participant Alice
participant Bob
participant Carol

Alice -> Bob : hello
@enduml

But you can hide unlinked participant. 

@startuml
hide unlinked
participant Alice
participant Bob
participant Carol

Alice -> Bob : hello
@enduml

[Ref. QA-4247]

Please report any bugs to plantuml@gmail.com or here.
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