Software design pattrens

Design Patterns are pre-defined solutions to design problems in any software development. In our day-to-day life we are coming across lot of similar problems and there are n- number of ways of solve the same.. But have u ever thing that the same problem which u solved can be handled in a different or a better method which is already defined..

Are you looking for a definition for Design patterns ?

"Design patterns are recurring solutions to software design problems you find again and again in real-world application development. Design patterns are about design and interaction of objects, as well as providing a communication platform concerning elegant, reusable solutions to commonly encountered programming challenges"


The Gang of Four patterns is the base for all software design patterns available :-

GoF is categorized into three groups

1. Creational
2. Structural
3. Behavioral

Just to summarize each group, here is the list of all 23 software design patterns

Creational Design Patterns

1. Abstract Factory
2. Factory Method
3. Prototype
4. Builder
5. Singleton

Structural Design Patterns

6. Adapter
7. Bridge
8. Composite
9. Decorator
10.Facade
11.Flyweight
12.proxy

Behavioral Patterns

13. Chain of Responsibility
14. Command
15. Interpreter
16. Iterator
17. Mediator
18. Memento
19. Observer
20. State
21. Strategy
22. Template Method
23. Visitor