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Principles of OOD

Categories: Patterns


  • 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.