CSC509 Lecture 13

jgs CSC 509 Software Engineering II: Modeling and Design Lecture
13: Final Review Dr. Javier Gonzalez-Sanchez [email protected] www.javiergs.com Building 14 -227

jgs The following slides shows some examples related to some
topics This is NOT a comprehensive list of topics

jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 |
3 Grading Team Project 30% 30% Assignments, Quizzes, Labs 25% Final Exam 10% Attendance & Participation 5% Self / Peer Evaluation 100%

4 Grading 100% A >= 96.5 A- >= 93.0 B+ >= 89.5 B >= 86.0 B- >= 82.5 C+ >= 79 C >= 75.5 C- >= 72.0 D+ >= 68.5 D >= 65.0 D- >= 61.5 F < 61.5

5 Alternative Solution New Yorker, June 1992 "Most software today is very much like an Egyptian pyramid with millions of bricks piled on top of each other, with no structural integrity, but just done by brute force and thousands of slaves". – Alan Kay. Pioneering work on object-oriented programming ACM Queue. Vol. 2, No. 9 - Dec/Jan 2004-2005

6 Idea OOAD, Grady Booch, 2007

7 Object Oriented Relationships Association Directed Association Reflexive Association Multiplicity Aggregation Composition Generalization Realization

8 Relationships Association Directed Association Reflexive Association Multiplicity Aggregation Composition Generalization Realization

9 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); } } 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]; } Lab

10 Design for this solution

11 § Keep it Simple - over-designing the system is as bad as their absence when needed. § A design that is more than what we need smells. § Design principles are not a perfume to be liberally scattered all over the system. Key idea

12 This Looks Good

13 Project

14 Design (Part 3) C D 👉 👉 👉 👉 🤔 😩 😩 😩 😩 👉

15 § DRY § KIS Java Programming

16 There are five key design principles to consider in Object-Oriented: § Single Responsibility Principle (SRP) § Open-Closed Principle (OCP) § Liskov Substitution Principle (LSP) a child should always be better than its parent. § Interface Segregation Principle (ISP) broke up interfaces § Dependency Inversion Principle (DIP) do not call us, we will call you Design Principles

17 SRP Example

18 OCP Example

19 DIP Example

20 • Instability = Cout (Cin + Cout) Stable Abstraction Principle (SAP)

21 Example

22 Example ITeamA = 6 / 0 + 6 = 1 ATeamA = 0 DTeamA = 0 + 1 – 1 = 0

23 Structural Metrics Instability = Cout (Cin + Cout) D = A + I – 1

24 GoF Patterns

25 Composite

26 Chain of Responsibility

27 Strategy

28 Adapter

29 Bridge

30 Idea 2 Main Factory Gift Ball Box Envelop Handler Supervisor Bin GUI

31 § Library § Framework § Platform § API Concepts

32 Eclipse Modeling Framework

33 § These are singletons, to access the instances use § XXXPackage.eINSTANCE § XXXFactory.eINSTANCE § Use the Factory to create instances of your model classes, e.g: TaskList t = ExampleFactory.eINSTANCE.createTaskList(); § Use the Package to access the meta-model definition, e.g: EClass c = ExamplePackage.eINSTANCE.getTaskList(); List attrs = c.getEAttributes(); Patterns

34 package myModel.impl; public class StudentImpl extends MinimalEObjectImpl.Container implements Student { protected boolean hasScholarship = HAS_SCHOLARSHIP_EDEFAULT; protected Computer computer; @Override public void setComputer(Computer newComputer) { Computer oldComputer = computer; computer = newComputer; if (eNotificationRequired()) eNotify(new ENotificationImpl (this, Notification.SET, MyModelPackage.STUDENT__COMPUTER, oldComputer, computer)); } @Override public Computer getComputer() { if (computer != null && computer.eIsProxy()) { InternalEObject oldComputer = (InternalEObject)computer; computer = (Computer)eResolveProxy(oldComputer); if (computer != oldComputer) { if (eNotificationRequired()) eNotify(new ENotificationImpl (this, Notification.RESOLVE, MyModelPackage.STUDENT__COMPUTER, oldComputer, computer)); } } return computer; } } Patterns

35 Jakarta Platform request.getQueryString()

36 Guidelines Can you create the “blueprint” for that one?

37 AWS Lambda

38 Guidelines Can you create the “blueprint” for that one?

39 Servlet Container Server Apache Java Servlet JRE JVM Java Libraries Your program HTTP @WebServlet (”/name")

jgs CSE 564 Computer Systems Fundamentals Javier Gonzalez-Sanchez [email protected] Fall
2020 Disclaimer. These slides can only be used as study material for the class CSE564 at ASU. They cannot be distributed or used for another purpose.

CSC509 Lecture 13

CSC509 Lecture 13

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