A message between two objects in a UML sequence diagram is represented by:
A) A dashed line with a stick arrowhead.
B) A dashed line with a filled arrowhead.
C) A solid line with a stick arrowhead.
D) A solid line with a filled arrowhead.

Question

Quizplus · Accepted Answer

In a UML sequence diagram, a message between two objects is represented by a solid line with a filled arrowhead. The solid line represents the communication channel or path over which the message is transmitted, and the filled arrowhead indicates the direction of communication (from the sender to the receiver). The dashed line with a stick arrowhead may represent other elements such as return messages or asynchronous communication.

A Message Between Two Objects in a UML Sequence Diagram