How does Clean Architecture relate to DDD (Domain Driven Design)?
Updated Apr 28, 2026
Short answer
Clean Architecture provides the structural layers, while DDD provides the tools for modeling the core 'Entity' and 'Use Case' layers.
Deep explanation
Clean Architecture is about the technical separation of concerns. DDD is about modeling the business logic effectively. DDD concepts like Aggregates, Value Objects, and Domain Services fit perfectly inside the 'Entities' and 'Use Cases' circles of Clean Architecture.
Real-world example
Using a DDD 'Aggregate Root' as the primary Entity that a CA 'Use Case' interacts with.
Common mistakes
- Thinking you have to choose one over the other.
Follow-up questions
- What is a Domain Service in this context?