Marc Dormey

Posts Tagged ‘open close principle’

If you use Agile as project management methodology then you must have heard of the ‘SOLID’ principles. Agile and SOLID goes hand in hand.
Uncle Bob has a great article on SOLID and explains each principle in detail with examples.

A summary of the principles below:

• S – Single Responsibility Pattern
  A class should have one, and only one, reason to change
• O – Open/Close Principle
  Classes should be closed for modification, but open for extension
• L – Liskov Substitution Principle
  Derived classes must be substitutable for their base classes.
• I – Interface Segregation Principle
  Clients should not be forced to depend upon interfaces that they do not use.
• D – Dependency Inversion Principle
  Depend on abstractions, not concretions

You can read the full article here