Answer :
Final answer:
In sequence diagrams, objects and actors are represented by rectangles or stick figures, interactions are represented by arrows, and lifelines of objects are represented by vertical dashed lines.
Explanation:
In sequence diagrams, the following graphical notations are used:
- Objects and actors: Objects and actors are represented by rectangles or stick figures. Objects are typically labeled with their names, while actors are labeled with the role they play in the system.
- Interactions: Interactions between objects and actors are represented by arrows. The arrows indicate the flow of messages between different components of the system.
- Lifelines of objects: Lifelines of objects are represented by vertical dashed lines. These lines represent the lifespan of an object during the execution of the sequence diagram.
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