The document discusses the principles of object-oriented design (OOD) and object-oriented programming (OOP), highlighting essential concepts like encapsulation, inheritance, and polymorphism. It outlines key principles such as the Single Responsibility Principle, Open/Closed Principle, Liskov Substitution Principle, Dependency Inversion Principle, and Interface Segregation Principle, emphasizing their importance in software design. The document also mentions the transition from procedural to object-oriented programming and the challenges associated with grasping OOP concepts.

1. Principle of OOD Abdul Hamid Cristian Jon Kartago Lamida 24 September 2010 New Frontier Solutions

2. Agenda Basic OOD Concept General OOD Process Sofware Change Principle of OOD Single Responsibility Principle Open Close Principle Liskov Subtitution Principle Dependency Inversion Principle Interface Segregation Principle

3. Why OOP? Procedural to OOP Procedural = start from functionality OOP = start from data Plus: OOP nice for developing complex software with large modul involving many developer Minus: OOP Concept is somewhat difficult to grasp at first place

4. Object Oriented Concept

5. Object Oriented Pilar - PIE Encapsulation Inheritance Polymorphism

6. Encapsulation Information Hiding Bundling Mechanism

7. Inheritance Is a... extends/implements

8. Polymorphism Object can detect its type at runtime

9. Object Design abstraction software change design pattern

10. Software Change Rigidity Fragility Immobility Viscocity

11. Principles of OOCD

12. Single Responsibility Principle There should not be more than one reason for software to change

13. Open Close Principle A module should be open for extension but closed for modification.

14. Liskov Subtitution Principle Subclasses should be substitutable for their base classes.

15. Dependency Inversion Principle Depend upon Abstractions. Do not depend upon concretions.

16. Interface Segregation Principle Many client specific interfaces are better than one general purpose interface

17. Java Project Use Case SRP: entity OCP, LSP: AbackingBean DIP: JumpActionBaseList

18. Discussion

19. Thank You