Design Patterns & Low-Level Design

A collection of commonly used software design patterns implemented with practical examples and real-world applications.

This repository was created as part of my learning and exploration of scalable software architecture, maintainable code design, and object-oriented system design principles commonly used in backend and enterprise applications.

Topics Covered

Creational Patterns

• Singleton
• Factory
• Abstract Factory
• Builder

Structural Patterns

• Adapter
• Decorator
• Facade

Behavioral Patterns

• Observer
• Strategy
• Command
• State

Repository Goals

• Understand core object-oriented design principles
• Learn reusable software architecture patterns
• Explore practical use-cases of design patterns
• Improve low-level design and maintainable system development skills
• Build intuition for scalable backend and enterprise application design

Applications

The concepts implemented here are commonly used in:

• Backend systems
• Enterprise applications
• Scalable APIs
• Workflow systems
• Event-driven architectures
• Production-grade software systems

Tech Stack

• C++
• Object-Oriented Programming (OOP)
• SOLID Principles
• Low-Level Design (LLD)

Future Improvements

• UML/Class diagrams
• Real-world case studies
• Multi-threaded pattern implementations
• Pattern comparisons and trade-offs****