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RRB Junior Engineer / DMS / CMA 2019 · Question 3638 of 3719

A ____________ is an interaction diagram that emphasizes the time ordering of messages sent between objects.

  1. ASequence diagramCorrect
  2. BComponent diagram
  3. CClass diagram
  4. DActivity diagram

Answer: A. Sequence diagram

Explanation

Sequence Diagram is an interaction diagram that emphasizes the time ordering of messages sent between objects. Important Point Sequence Diagrams the interaction that takes place in a collaboration that either realizes a use case or high-level interactions between the user of the system and the system, between the system and other systems or between subsystems (sometimes known as system sequence diagrams) Purpose of Sequence Diagram Model high-level interaction between active objects in a system Model the interaction between object instances within a collaboration that realizes a use case Model the interaction between objects within a collaboration that realizes an operation Either model generic interactions or specific instances of interaction

Source: RRB JE 2019 (CBT 2) (IT) Previous Year Paper (30 Aug 2019) — prepp.in solved-paper PDF (answer key with explanations) · reliable-secondary

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