domain-driven-design

Domain-driven design guides teams to model software around business domains, enforcing a ubiquitous language and explicit boundaries to reduce coupling and complexity. It separates domain models using bounded contexts to align team collaboration.

To define bounded contexts and aggregates, you separate domain models by business boundaries and group related entities and value objects. This preserves invariants and enables clear lifecycle management within explicit aggregate boundaries.

You need an anti-corruption layer when separate bounded contexts must interact. It translates external domain models safely, preventing coupling and ensuring cross-context interaction remains secure through domain events and context mapping.

Domain-driven design suits teams designing complex domains at scale by applying strategic design. It categorizes core, supporting, and generic subdomains to focus investment, maintaining scalable collaboration across explicit context maps.

The best way to start is to map a small business domain into bounded contexts and define a first aggregate with a corresponding domain event. This establishes ubiquitous language and structured boundaries early.