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SYSTEM DESIGN (LLD)SYSTEM DESIGN (HLD)DSAMACHINE LEARNINGGENAIMYSQLOSINTERVIEWDBMSDEEP LEARNINGROADMAPSJAVASCRIPTPYTHON

Basic LLD

  • Introduction of LLD
  • LLD vs HLD
  • Types of LLD Questions

OOP Fundamentals

  • Classes
  • Objects
  • Enums
  • Interface
  • Encapsulation
  • Abstraction
  • Inheritance
  • Polymorphism
  • Immutability
  • Deep copy vs shallow copy
  • Method overloading vs overriding
  • Object lifecycle

Class Relationships

  • Association
  • Aggregation
  • Composition
  • Dependency
  • Realization

Design Principles

  • DRY Principle
  • KISS Principle
  • YAGNI Principle
  • Law of Demeter
  • Separation of Concerns
  • Coupling and Cohesion
  • Composing Objects Principle

SOLID Principles

  • Single Responsibility
  • Open Closed
  • Liskov Substitution
  • Interface Segregation
  • Dependency Inversion

UML & Modeling

  • Structural Diagrams
  • Behavioral Diagrams
  • Modeling Techniques

Design Patterns

  • Introductions
  • Creational Patterns
  • Structural Patterns
  • Behavioral Patterns
  • Additional Patterns

LLD Interview Framework

  • Requirement Clarification
  • Identifying Objects
  • Designing Responsibilities
  • Defining Interactions
  • E-commerce & Booking Systems

LLD Interview Questions

  • Games & Puzzles
  • Data Structures & Search
  • Managing States
  • Management Systems
  • Social & Content Platforms
  • E-commerce & Booking Systems
  • Communication & Messaging
  • Financial & Payment Systems
  • Developer Tools & Infrastructure

System Design (LLD) Tutorial

Learn System Design (LLD) with our comprehensive tutorials

Basic LLD

3 topics →

OOP Fundamentals

12 topics →

Class Relationships

5 topics →

Design Principles

7 topics →

SOLID Principles

5 topics →

UML & Modeling

3 topics →

Design Patterns

5 topics →

LLD Interview Framework

5 topics →

LLD Interview Questions

9 topics →

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