Saturday, November 13, 2010

Design Pattern .......................

Design Pattern are recognized solutions to common problems defined by Gang of Four Programmer.
Design Pattern are about design, interaction of objects, as well as providing a communication platform for objects and reusable solutions to common problems.

Design Pattern are important to understand for the following reasons:

1) They give us reuse.
2) Design Pattern allow one refer to a design concept without explaining the full detail.
3) They give us a common taxonomy(classification) allowing for better communication.

There are three type of pattern :-

1) Creational Pattern :- Based on how to create an object
2) Structural Pattern :- Based on how to define the structure using interface and abstract classes
3) Behavioral Pattern :- Based on communication of the object how do they communicate.

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