tactical-ddd

Refactor anemic domain models by isolating domain logic and orchestrating use cases explicitly. Domain-driven design principles transform passive data structures into rich domain models that enforce business invariants and improve maintainability.

Designing aggregates around invariants ensures transactional consistency in domain-driven design. Group related entities and value objects into an aggregate root that strictly enforces business rules, preventing invalid states across the entire aggregate boundary.

Use immutable value objects for domain modeling to represent concepts without identity, like Money or Address. Immutable value objects prevent accidental state mutation, simplify testing, and ensure explicit expression of domain language in software design.

Review code for tactical DDD by checking a mandatory list: isolate domain logic, avoid anemic models, separate generic concepts, and verify aggregate design. This code review ensures business logic remains robust, maintainable, and understandable.

You need to isolate domain logic in software design when business rules become scattered across application layers. Isolating this logic prevents anemic models, ensures explicit expression of business concepts, and maintains clear boundaries for domain-driven design.