Principle of OOD
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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.
Principle of OOD
- 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
- 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
- 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