CSC307 Lecture 05

Introduction to Software Engineering
Software Design
(202407)

This lecture delves into the fundamentals of UML class diagrams for representing the structural models of software systems. We cover the graphical abstract descriptions that serve as blueprints for software solutions, detailing how class diagrams illustrate attributes, methods, and relationships between classes, including dependency, associations, aggregations, compositions, and generalization/specialization. Practical examples and activities help students apply these concepts.

Transcript

1. Dr. Javier Gonzalez-Sanchez javiergs@calpoly.edu www.javiergs.info o ffi ce: 14 -227 CSC 307 Introduction to Software Engineering Lecture 05. Software Design
2. Homework 1. Due today: Paint-App
3. Homework 2. Due today: Game-of-Life
4. Previously
5. Tools We need a Tool
6. Task Board 6
7. Software Design
8. Activities 8
9. 
 
 
 
 Software Design De f inition To cre a te a speci f ic a tion of a softw a re (solution) Gr a phic a l Abstr a ct Description (blueprint) 9 model
10. Whiteboard 10
11. Design 11 VS
12. Error Smells
13. Structural models Structur a l models of softw a re displ a y the org a niz a tion of a system in terms of a ) the p a rts (items, elements, components) th a t m a ke up th a t system a nd b) their rel a tionships. 13
14. UML Diagrams 14
15. Class diagram Cl a ss di a gr a ms show the cl a sses in a system • modi f iers • Attributes • methods And the rel a tionships between these cl a sses: • Associ a tion / Dependency • Aggreg a tion / Composition • Gener a liz a tion / Speci a liz a tion / Re a liz a tion 15
16. Relationships 16 Association Directed Association Reflexive Association Multiplicity Aggregation Composition Generalization Realization
17. Let’s Work 17
18. Examples
19. Thoughts? 19
20. Thoughts? 20
21. Thoughts? 21
22. CSC3100/Cloud-Services 22
23. Your Code 23
24. Questions 24
25. Lab 05. UML Class Diagrams
26. Lab 26 Draft the Class Diagram for ___________________.
27. Problem public class B implements E { public B() { C c1 = new C(); } public void method() { B b = new B(); b.sleep(); } } public class Y { A [] a = new A[5]; } public class A extends B { C c1, c2; public A() { c1 = new C(); } public void method() { D d = new D(); d.working(); } } public class X { public void m() { B var = new A(); double x – Math.sqrt(5); } }
28. Homework 1. Due today: Paint-App
29. Homework 2. Due today: Game-of-Life
30. CSC 307 Introduction to Software Engineering Javier Gonzalez-Sanchez, Ph.D. javiergs@calpoly.edu Summer 2024 Copyright. These slides can only be used as study material for the class CSC307 at Cal Poly. They cannot be distributed or used for another purpose.