pixel to be used. @startuml PlantUML Language Reference Guide (1.2021.2) 17 / 415 1.24 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM Alice -> Bob: message 1 Bob --> Alice: ok ||| Alice -> Bob: message 3 Bob --> Alice: ok @enduml 1.24 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. Once a participant is activated, its lifeline appears Done deactivate A @enduml PlantUML Language Reference Guide (1.2021.2) 18 / 415 1.24 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM Nested lifeline can be used, and it is possible to add a color

/ 174 1.19 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM 1.19 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. Once a participant message with optional text label. The return point is that which caused the most recent life-line activation. PlantUML Language Reference Guide (1.2019.9) 16 / 174 1.21 Participant creation 1 SEQUENCE DIAGRAM String note right : You can also put notes! Alice --> Bob : ok @enduml 1.22 Shortcut syntax for activation, deactivation, creation Immediately after specifying the target participant, the following syntax

/ 166 1.19 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM 1.19 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. Once a participant String note right : You can also put notes! Alice --> Bob : ok @enduml 1.22 Shortcut syntax for activation, deactivation, creation Immediately after specifying the target participant, the following syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1.19 Lifeline Activation and Destruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1.20 Return

/ 158 1.19 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM 1.19 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. Once a participant String note right : You can also put notes! Alice --> Bob : ok @enduml 1.22 Shortcut syntax for activation, deactivation, creation Immediately after specifying the target participant, the following syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1.19 Lifeline Activation and Destruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1.20 Return

message 3 Bob --> Alice: ok @enduml 1.19 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. Once a participant is activated, its lifeline appears appears. PlantUML Language Reference Guide (1.2019.1) 13 / 147 1.19 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM The activate and deactivate apply on the previous message. The destroy denote String note right : You can also put notes! Alice --> Bob : ok @enduml 1.22 Shortcut syntax for activation, deactivation, creation Immediately after specifying the target participant, the following syntax

/ 159 1.19 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM 1.19 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. Once a participant String note right : You can also put notes! Alice --> Bob : ok @enduml 1.22 Shortcut syntax for activation, deactivation, creation Immediately after specifying the target participant, the following syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1.19 Lifeline Activation and Destruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1.20 Return

pixel to be used. @startuml PlantUML Language Reference Guide (1.2021.1) 17 / 391 1.24 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM Alice -> Bob: message 1 Bob --> Alice: ok ||| Alice -> Bob: message 3 Bob --> Alice: ok @enduml 1.24 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. Once a participant is activated, its lifeline appears Done deactivate A @enduml PlantUML Language Reference Guide (1.2021.1) 18 / 391 1.24 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM Nested lifeline can be used, and it is possible to add a color

pixel to be used. @startuml PlantUML Language Reference Guide (1.2021.2) 17 / 397 1.24 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM Alice -> Bob: message 1 Bob --> Alice: ok ||| Alice -> Bob: message 3 Bob --> Alice: ok @enduml 1.24 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. Once a participant is activated, its lifeline appears Done deactivate A @enduml PlantUML Language Reference Guide (1.2021.2) 18 / 397 1.24 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM Nested lifeline can be used, and it is possible to add a color

/ 173 1.19 Lifeline Activation and Destruction 1 SEQUENCE DIAGRAM 1.19 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. Once a participant String note right : You can also put notes! Alice --> Bob : ok @enduml 1.22 Shortcut syntax for activation, deactivation, creation Immediately after specifying the target participant, the following syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1.19 Lifeline Activation and Destruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1.20 Return

22 Lifeline Activation and Destruction The activate and deactivate are used to denote participant activation. PlantUML Language Reference Guide (1.2020.23) 16 / 310 1.22 Lifeline Activation and Destruction 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 String note right : You can also put notes! Alice --> Bob : ok @enduml 1.25 Shortcut syntax for activation, deactivation, creation Immediately after specifying the target participant, the following syntax