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 5 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 repeat the arrow head (for example, >> or //) head to have a thin drawing PlantUML Language Reference Guide (1.2019.4) 3 / 166 1.6 Change arrow color 1 SEQUENCE DIAGRAM • use -- instead of - to have a dotted

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 5 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 repeat the arrow head (for example, >> or //) head to have a thin drawing PlantUML Language Reference Guide (1.2019.3) 3 / 158 1.6 Change arrow color 1 SEQUENCE DIAGRAM • use -- instead of - to have a dotted

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 5 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 repeat the arrow head (for example, >> or //) head to have a thin drawing PlantUML Language Reference Guide (1.2019.1) 3 / 147 1.6 Change arrow color 1 SEQUENCE DIAGRAM • use -- instead of - to have a dotted

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 5 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 repeat the arrow head (for example, >> or //) head to have a thin drawing PlantUML Language Reference Guide (1.2019.2) 3 / 159 1.6 Change arrow color 1 SEQUENCE DIAGRAM • use -- instead of - to have a dotted

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 1.5 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 the arrow head (for example, >> or //) head to have a thin drawing • use -- instead of - to have a dotted arrow PlantUML Language Reference Guide (1.2019.9) 3 / 174 1.6 Change arrow color 1 SEQUENCE

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 5 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 repeat the arrow head (for example, >> or //) head to have a thin drawing PlantUML Language Reference Guide (1.2019.6) 3 / 173 1.6 Change arrow color 1 SEQUENCE DIAGRAM • use -- instead of - to have a dotted

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 @enduml 1.5 Text alignment 1.5.1 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. PlantUML PlantUML Language Reference Guide (1.2020.23) 3 / 310 1.6 Change arrow style 1 SEQUENCE DIAGRAM @startuml skinparam responseMessageBelowArrow true Bob -> Alice : hello Alice -> Bob : ok @enduml TODO: TODO

link actors and use cases, the arrow --> is used. The more dashes - in the arrow, the longer the arrow. You can add a label on the arrow, by adding a : character in the arrow definition. In this example (Use case 2) <- :user: @enduml It is also possible to change arrow direction by adding left, right, up or down keywords inside the arrow: @startuml :user: -left-> (dummyLeft) :user: -right-> (dummyRight) @enduml PlantUML 언어참조가이드 (1.2019.2) 29 / 157 2.9 Splitting diagrams 2 유즈케이스다이어그램 You can shorten the arrow by using only the first character of the direction (for example, -d- instead of -down-) or the two

link actors and use cases, the arrow --> is used. The more dashes - in the arrow, the longer the arrow. You can add a label on the arrow, by adding a : character in the arrow definition. In this example (Use case 2) <- :user: @enduml It is also possible to change arrow direction by adding left, right, up or down keywords inside the arrow: @startuml :user: -left-> (dummyLeft) :user: -right-> (dummyRight) @enduml PlantUML 언어참조가이드 (1.2019.4) 29 / 165 2.9 Splitting diagrams 2 유즈케이스다이어그램 You can shorten the arrow by using only the first character of the direction (for example, -d- instead of -down-) or the two

link actors and use cases, the arrow --> is used. The more dashes - in the arrow, the longer the arrow. You can add a label on the arrow, by adding a : character in the arrow definition. In this example (Use case 2) <- :user: @enduml It is also possible to change arrow direction by adding left, right, up or down keywords inside the arrow: @startuml :user: -left-> (dummyLeft) :user: -right-> (dummyRight) (dummyRight) :user: -up-> (dummyUp) :user: -down-> (dummyDown) @enduml You can shorten the arrow by using only the first character of the direction (for example, -d- instead of -down-) or the two first characters