Question:

Which UML diagram is isomorphic to sequence diagram?

Show Hint

Sequence Diagram and Collaboration Diagram represent the same interaction information in different ways.
Updated On: Jun 25, 2026
  • State chart diagram
  • Class diagram
  • Object diagram
  • Collaboration diagram
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The Correct Option is D

Solution and Explanation

Concept: UML provides several diagrams for modeling object interactions. Two important interaction diagrams are:
• Sequence Diagram
• Collaboration Diagram

Step 1:
Understand Sequence Diagram.
A sequence diagram emphasizes:
• Time ordering of messages
• Object interactions
• Execution flow

Step 2:
Understand Collaboration Diagram.
A collaboration diagram shows the same interactions but focuses on relationships among objects. The information represented is essentially equivalent.

Step 3:
Meaning of Isomorphic.
Two diagrams are called isomorphic if one can be transformed into the other without losing information.

Step 4:
Choose the answer.
Therefore, \[ \boxed{\text{Collaboration Diagram}} \] is isomorphic to a Sequence Diagram.
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