Tag: ddd

How to isolate legacy systems with translation adapters. Covers ACL facade, domain translation, bidirectional mapping, and gradual legacy replacement.

Encapsulate a cluster of domain objects treated as a single unit for data changes. An Aggregate Root controls access to its internal entities and value objects.

Capture and publish major occurrences within a domain model to decouple side effects from core business logic and enable reactive workflows.

Assign dynamic roles to objects at runtime instead of hard-coding behavior in class hierarchies, enabling flexible identity changes without inheritance bloat.

Model domain concepts by value rather than identity. An immutable object defined by its attributes, not by a unique ID.

Master event sourcing and CQRS: event store design, aggregate roots, projections, read models, snapshots, sagas, and production patterns for event-driven systems.

Master modular monolith architecture: module boundaries, shared kernel, dependency rules, communication patterns, and incremental migration to microservices.