CSE563 Lecture 10

Software Requirements and Specification
Use Case Diagrams II
(202202)

Transcript

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   CSE 563
   Software Requirements and Specification
   Lecture 10: Use Case Diagrams II
   Dr. Javier Gonzalez-Sanchez
   javiergs@asu.edu
   javiergs.engineering.asu.edu | javiergs.com
   PERALTA 230U
   Office Hours: By appointment
   

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   Homework 03
   § UML Use Case Diagrams
   a) Pac-man Videogame
   b) Game of Life
   c) Space Invaders Game
   Can you identify inheritance, include, or extends?
   

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   Astah.net
   § Free Student License
   https://astah.net/products/free-student-license/
   Quick tutorial of how to create use cases:
   https://astah.net/support/astah-pro/user-guide/usecase-diagram/
   

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   Previously…
   

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   Inclusion
   base
   addition
   

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   Example
   

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   Extends
   

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   Extension
   § Extending use case defines optional behavior that is not necessarily
   meaningful by itself.
   § Extend relationship is shown as a dashed line with an open arrowhead
   directed from the extending use case to the extended (base) use case.
   The arrow is labeled with the keyword «extend».
   base extension
   

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   Inclusion
   extension
   base
   

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    Example
    

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    What about this?
    

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    What about this?
    

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    Include vs Extends
    

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    Include vs Extends
    extension
    base
    base
    addition
    

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    Examples
    Use Case Diagrams
    

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    Example
    

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    Example
    

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    Example
    

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    Example
    

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    Example
    http://epf.eclipse.org/wikis/openup/core.tech.common.extend_supp/guidances/examples/uc_model_elaboration_phase_70035F60.html
    

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    Think About This
    

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    From a Student’s Homework – Thoughts?
    

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    Test Yourselves
    UC diagram for curse enrollment using MyASU
    

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    Case 1
    • What about external systems?
    • unambiguous, and verifiable
    • Example 7 in Lecture 9
    

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    Case 2
    • Where is the user and/or the external systems?
    • unambiguous, and verifiable
    • Example 7 in Lecture 9
    

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    Case 3
    • unambiguous, and verifiable
    • Example 7 in Lecture 9
    

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    Case 4
    • unambiguous, and verifiable
    • Example 7 in Lecture 9
    

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    Case 5
    • UML notation
    • unambiguous, and verifiable
    • Example 7 in Lecture 9
    

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    Case 6
    • Example 7 in Lecture 9
    

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    Case 7
    • UML notation
    • unambiguous, and verifiable
    • Example 7 in Lecture 9
    

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    Case 8
    

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    Correct Answer
    Can you draw the correct diagram for curse enrollment using MyASU ?
    

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    Questions
    

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    CSE 563 Software Requirements and Specification
    Javier Gonzalez-Sanchez, Ph.D.
    javiergs@asu.edu
    Spring 2022
    Copyright. These slides can only be used as study material for the class CSE563 at ASU.
    They cannot be distributed or used for another purpose.
    

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