SOLID: Open Close Principle Overview The Open/Closed Principle (OCP) is one of the fundamental principles of object-oriented design, forming part of the SOLID principles. The concept is simple: “Software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification.” This principle encourages building systems where new functionality can be added without altering existing code. This leads to … Continue reading Open/Closed Principle (OCP) in Swift using Decorator Pattern