SOLID

What are SOLID Principles? §

Principle	Full name	Description
SRP	The Single Responsibility Principle	A class should have one, and only one, reason to change.
OCP	The Open Closed Principle	You should be able to extend a classes behavior, without modifying it.
LSP	The Liskov Substitution Principle	Derived classes must be substitutable for their base classes.
ISP	The Interface Segregation Principle	Make fine grained interfaces that are client specific.
DIP	The Dependency Inversion Principle	Depend on abstractions, not on concretions.
http://butunclebob.com/ArticleS.UncleBob.PrinciplesOfOod

단일 책임 원칙 SRP (Single Responsibility Principle) §

A class should have one, and only one, reason to change.

A module should be responsible to one, and only one, actor.

목표 §

• 클래스가 변경됐을 때 영향을 받는 액터가 하나여야 한다.
• 클래스를 변경할 이유는 유일한 액터의 요구사항이 변경될 때로 제한되어야 한다.

개방 폐쇄 원칙 OCP (Open-Closed Principle) §

You should be able to extend a classes behavior, without modifying it.

리스코프 치환 원칙 LSP (Liskov Substitution Principle) §

Derived classes must be substitutable for their base classes.

인터페이스 분리 원칙 ISP (Interface Segregation Principle) §

Make fine grained interfaces that are client specific