Sequence Diagram ( UML )

Notations used in Sequence Diagram are as follows:

Class Role: It describe the way an object should behave in context. The uml object symbol to show class roles, but don’t list object attributes.

Activation: By this box the time taken by the object to complete a task is represented.

Messages: It is used to represent communication between objects.

Lifelines: Lifelines are vertical dashed lines that indicate the object's presence over time.

Destroying Objects: Objects can be terminated early using an arrow labeled "<< destroy >>" that points to an X.

Loops: A repetition or loop within a sequence diagram is depicted as a rectangle. Place the condition for exiting the loop at the bottom left corner in square brackets [ ].

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Unified Modelling Language ( UML ), program design, software design, application design

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