Activations

Lifeline Activation and Destruction

Sequence Diagram Example

Use ++, --

Sequence Diagram Example

You can automatically destroy a participant after a message using the !! suffix.

Sequence Diagram Example

The autoactivate keyword can be used to automatically activate participants when they receive a message, and deactivate them when they reply.

Sequence Diagram Example

You can color activation boxes to distinguish different types of processing or highlight specific interactions.

Sequence Diagram Example

You can also color nested activations to visually distinguish different levels of the call stack.

Sequence Diagram Example