CSC308 Lecture 24

Software Engineering I
Use Case Diagram
(202303)

Transcript

1. jgs
   CSC 308
   Software Engineering 1
   Lecture 24:
   Use Case Diagram
   Dr. Javier Gonzalez-Sanchez
   javiergs@calpoly.edu
   www.javiergs.com
   Building 14 -227
   Office Hours: By appointment
   

   View Slide

2. jgs
   Previously …
   Use Case Diagram
   

   View Slide

3. jgs
   Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 3
   a) Actors
   b) Use Cases
   a) Relationships
   Diagram
   child father
   base addition
   extension base
   << include >>
   << extend >>
   

   View Slide

4. jgs
   Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 4
   § Show that behavior of the included use case (addition) is inserted into
   the behavior of the including (base) use case.
   § A dashed line with an open arrowhead directed from the including use
   case (base) to the included (addition) use case. The arrow is labeled with the
   keyword «include».
   § The include relationship is used to (1) simplify large use case by splitting it into
   several use cases, (2) extract common parts of the behaviors of two or more
   use cases.
   Inclusion
   base addition
   

   View Slide

5. jgs
   Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 5
   § 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».
   Extension
   base extension
   

   View Slide

6. jgs
   Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 6
   Include vs Extends
   

   View Slide

7. jgs
   Test Yourselves
   Use Case Diagram
   

   View Slide

8. jgs
   Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 8
   Example
   

   View Slide

9. jgs
   Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 9
   Example
   

   View Slide

10. jgs
    Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 10
    Thoughts?
    

    View Slide

11. jgs
    Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 11
    Thoughts?
    

    View Slide

12. jgs
    Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 12
    Thoughts?
    

    View Slide

13. jgs
    Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 13
    Questions
    

    View Slide

14. jgs
    Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 14
    Office Hours
    Tuesday and Thursday 3 - 5 pm
    But an appointment required
    Sent me an email – javiergs@calpoly.edu
    

    View Slide

15. jgs
    

    View Slide

16. jgs
    CSC 308
    Software Engineering 1
    Lab 24:
    Use Case Diagram
    Dr. Javier Gonzalez-Sanchez
    javiergs@calpoly.edu
    www.javiergs.com
    Building 14 -227
    Office Hours: By appointment
    

    View Slide

17. jgs
    Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 17
    Let’s Work
    Assignment 01
    

    View Slide

18. jgs
    Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 18
    Let’s Work
    Assignment 02
    

    View Slide

19. jgs
    Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 19
    Let’s Work
    Assignment 03
    

    View Slide

20. jgs
    CSC 308 Software Engineering I
    Javier Gonzalez-Sanchez, Ph.D.
    javiergs@calpoly.edu
    Winter 2023
    Copyright. These slides can only be used as study material for the class CSC308 at Cal Poly.
    They cannot be distributed or used for another purpose.
    

    View Slide