UML System Sequence Diagrams

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Questions and Answers

What is a system sequence diagram primarily concerned with?

  • Internal system events
  • External actor-generated events (correct)
  • Use case definitions
  • Inter-system communication protocols

What language dictates the style and notation of system sequence diagrams?

  • Use Case Description Language
  • Unified Modeling Language (correct)
  • System Sequence Notation
  • Systems Modeling Language

A system sequence diagram is a type of what UML diagram?

  • State machine diagram
  • Use case diagram
  • Sequence diagram (correct)
  • Class diagram

What does a system sequence diagram depict?

<p>The events and their order for a particular scenario (A)</p> Signup and view all the answers

In the context of system sequence diagrams, what is a scenario?

<p>A specific instance of a use case (C)</p> Signup and view all the answers

What is system behavior primarily focused on describing?

<p>What a system does without explaining how (D)</p> Signup and view all the answers

What is the primary benefit of creating a system sequence diagram?

<p>It is a fast and easily created artifact (D)</p> Signup and view all the answers

What type of information is NOT depicted in a system sequence diagram?

<p>Internal system components (A)</p> Signup and view all the answers

What is the main purpose of creating a system sequence diagram?

<p>To describe system behavior (B)</p> Signup and view all the answers

What is a key characteristic of a system sequence diagram?

<p>It is a fast and easily created artifact (B)</p> Signup and view all the answers

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Study Notes

System Sequence Diagrams

  • A system sequence diagram (SSD) is a pictorial representation of a specific scenario of a use case.
  • It displays the events triggered by external actors, their sequence, and inter-system events.
  • A system sequence diagram is a type of sequence diagram in UML (Unified Modeling Language).
  • The style and notation of a system sequence diagram are defined by UML.

System Behavior

  • System behavior describes what a system does, without explaining how it does it.
  • It includes a system sequence diagram as part of its description.

System Sequence Diagram

  • A system sequence diagram is a fast and easily created artifact.
  • It illustrates input and output events related to the systems under discussion.

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