CSC305 Lecture 15

Individual Software Design and Development
Connecting the Dots
(202503)

Transcript

1. Dr. Javier Gonzalez-Sanchez javiergs@calpoly.edu www.javiergs.info o ffi ce: 14 -227 CSC 305 Individual Software Design and Development Lecture 15. Connecting the Dots
2. Previously …
3. GoF Patterns 3
4. From an Idea B 4 Main Factory Gift Ball Box Envelop Handler Supervisor Bin ShippingStrategy Land Air
5. To A Software Design (UML Class Diagram) 5
6. Structural Quality
7. Instability • Indic a tes whether: ( a ) the item is m a inly used by others (st a ble – h a rd to ch a nge); or (b) it m a inly depends on other items (in-st a ble – ch a nge a ble). • It is a v a lue between 0 a nd 1: • 0 only incoming dependencies to • 1 (only outgoing dependencies). 7
8. Distance 8 Abstract Concrete Stable Hard to Change Only incoming dependencies Unstable Changeable Only outgoing dependencies the m ain sequence Painful Useless 0 1 1 0 Instability Abstractness
9. Connecting the Dots
10. To Code 10
11. Factory 11
12. Chain of Responsibilities 12
13. Decorator 13
14. Decorator 14
15. Observer 15
17. Bin 17 In main: In ConcreteHandlerWithBox: In ConcreteHandlerWithEnvelop:
18. One More Thing
19. Idea 2 19 Main Factory Gift Ball Box Envelop Handler Supervisor Bin GUI
20. Idea 2 20
21. Idea 2 :: the GUI elements 21
22. Idea 2 :: Listener 22
23. Idea 2 23 Main Factory Gift Ball Box Envelop Handler Supervisor Bin GUI
24. Questions 24
25. Assignment
26. Patterns in a Fantasy Quest 26
27. CSC 305 Individual Software Design and Development Javier Gonzalez-Sanchez, Ph.D. javiergs@calpoly.edu Winter 2025 Copyright. These slides can only be used as study material for the class CSC305 at Cal Poly. They cannot be distributed or used for another purpose.