An Introduction to Domain-Driven Design (DDD)

An introduction to Domain-Driven Design (DDD) covering its core philosophy, building blocks, and practical benefits. Explains key DDD constructs including Entities, Value Objects, Aggregates, Domain Services, Repositories, Factories, and Domain Events. Discusses the prerequisite knowledge needed (OOP, SOLID principles, design patterns), the importance of Ubiquitous Language, protecting the domain layer via layered architecture, and when DDD is appropriate versus simpler approaches like Anemic Domain Models. Illustrated with TypeScript/Node.js examples.