SOLID Design principles by GoF

There are five well-known software design principles from the book “Head First, Design Patterns”. Nothing’s absolute, but classical things are great enough to know and have a look on it.

S : Single responsibility

O : OCP, Open / Close Principles

• Objects should be open for extension, but closed for modification.
• 클래스(객체)는 확장에 대해서는 열려있어야 한다. 하지만, 코드 변경에 대해서는 닫혀 있어야 한다.

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D : Dependency Inversion Principles

• if you want an easier life as a coder, “depend on abstractions, not concretions”

• 추상화된 것에 의존하도록 만들어라. 구상 클래스에 의존하도록 만들지 않아야 한다.

  Useful links

  SOLID design principles