dotnet-tactical-ddd

Implement tactical Domain-Driven Design in .NET by structuring your backend into Domain, Application, and Infrastructure layers. Use Value Objects, Entities, and Aggregates to encode business rules, and apply repository patterns to maintain clear boundaries.

Map private fields and owned types in EF Core by applying explicit configuration within your Infrastructure layer. This ensures persistence mapping remains decoupled from your domain models, allowing private property entities to enforce invariants without exposing setters.

The best way to decouple API DTOs from domain models in C# is by enforcing DTO boundaries and explicit mappings. This prevents leaking internal domain structures to your API consumers and keeps controllers decoupled from core business logic.

You need Aggregates and Domain Events in C# when coordinating multiple aggregates with complex business rules and invariants. Domain Events allow domain services to coordinate cross-aggregate logic without leaking internal entity details to other layers.

You can eliminate anemic entities and controller-driven logic in .NET by adopting a domain-centric architecture. Moving business rules into Value Objects, Entities, and Aggregates reduces passive data models and centralizes logic in the Domain layer.

Tactical DDD requires separate Domain and Application projects in .NET to establish clear boundaries. Separating these layers ensures domain invariants stay isolated from infrastructure concerns and application orchestration workflows.