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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?

The events and their order for a particular scenario Signup and view all the answers

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

A specific instance of a use case Signup and view all the answers

What is system behavior primarily focused on describing?

What a system does without explaining how Signup and view all the answers

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

It is a fast and easily created artifact Signup and view all the answers

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

Internal system components Signup and view all the answers

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

To describe system behavior Signup and view all the answers

What is a key characteristic of a system sequence diagram?

It is a fast and easily created artifact Signup and view all the answers

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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Description

Learn about system sequence diagrams, a type of sequence diagram in UML that shows events and their order in a scenario. Understand the style and notation of SSDs as dictated by the Unified Modeling Language.