LLD (Low-level design)

Low-level design patterns can be categorized into three main types:

1. Creational Design Patterns: These patterns focus on object creation mechanisms, dealing with object instantiation and composition. Creational design patterns include:
   • Singleton Pattern
   • Factory Method Pattern
   • Abstract Factory Pattern
   • Builder Pattern
   • Prototype Pattern
2. Structural Design Patterns: These patterns deal with object composition and provide ways to compose objects to form larger structures while keeping them flexible and efficient. Structural design patterns include:
   • Adapter Pattern
   • Bridge Pattern
   • Composite Pattern
   • Decorator Pattern
   • Facade Pattern
   • Flyweight Pattern
   • Proxy Pattern
3. Behavioral Design Patterns: These patterns focus on communication between objects, defining how objects interact and distribute responsibilities. Behavioral design patterns include:
   • Chain of Responsibility Pattern
   • Command Pattern
   • Interpreter Pattern
   • Iterator Pattern
   • Mediator Pattern
   • Memento Pattern
   • Observer Pattern
   • State Pattern
   • Strategy Pattern
   • Template Method Pattern
   • Visitor Pattern

Each type of design pattern addresses different concerns and provides solutions to various design problems encountered during software development.