CS401 | sw engineering
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UML- UseCase: Sequence Diagrams

 

Help descibe the sequence involved in a Use-Case

A type of Interaction Diagram

 

Here is an example of a sequence diagram for Frustration detection for the ULearn system.

 

Example showing Higher and then lower resolution view of the sequence

 

Example 2

  • The WatchUser actor initiates the use case.
  • Object names are underlined to denote they are instances

 

 

  • describe OO programming messages, each with a receiver and sender.
  • vertical lines represent the instances of the types indicated above them
  • horizontal lines represent actions that involve the instances that they connect.

cs401:sw engieering

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