Which of the following symbols is used in a communication diagram,but not in a sequence diagram?
A)Message arrow
B)Object
C)Activation lifeline
D)Link

Question

​Which of the following symbols is used in a communication diagram,but not in a sequence diagram?
A)Message arrow
B)​Object
C)Activation lifeline
D)​Link

Quizplus · Accepted Answer

In UML (Unified Modeling Language), a communication diagram (previously known as a collaboration diagram) emphasizes the organization of objects and their interactions. While both communication and sequence diagrams are used to visualize interactions in a system, they focus on different aspects. A sequence diagram primarily shows the sequence of messages or interactions based on time, using message arrows, objects, and activation lifelines to represent the flow. On the other hand, a communication diagram shows the relationships and interactions among objects more broadly, using links to represent connections between objects. The concept of a "link" is specific to communication diagrams and is not used in sequence diagrams, making option D the correct answer.

​Which of the Following Symbols Is Used in a Communication

Which of the Following Symbols Is Used in a Communication