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Sequence Elements
This example shows some possible elements of Sequence diagrams and their stereotyped display.
Element descriptions
Element |
Description |
See also |
---|---|---|
Actor |
An instance of an actor at runtime; this can be depicted either as the human figure or in rectangle notation. |
Actor |
Lifeline |
An Object element with the stereotype Lifeline. |
Lifeline |
Boundary |
Represents a user interface screen or input/output device. |
Boundary |
Entity |
A persistent element - typically implemented as a database table or element. |
Control |
Control |
The active component that controls what work gets done, when and how. |
Entity |