Domain-Driven Design: Concepts and Practices for Senior Developers Training Course

Fundamentals of Domain-Driven Design

• Key principles and the rationale behind DDD.
• Building a ubiquitous language and fostering collaboration with domain experts.
• Differentiating between core, supporting, and generic subdomains.

Strategic Design and Bounded Contexts

• Establishing bounded contexts and defining their specific responsibilities.
• Context mapping techniques and integration patterns.
• Managing team structures, organizational boundaries, and data ownership.

Tactical Patterns — Essential Domain Model Components

• Entities and managing their identity.
• Value objects and the importance of immutability.
• Aggregates and defining transaction boundaries.

Domain Services, Repositories, and Factories

• Distinguishing when to use domain services versus application services.
• Repository patterns and considerations for persistence.
• Utilizing factory patterns for the creation of complex objects.

Modeling Complex Behaviors and Invariants

• Designing invariants to enforce critical business rules.
• Event-driven modeling and the use of domain events.
• Consistency models, including eventual consistency and sagas.

Integrating DDD with Architecture and Engineering Workflows

• Aligning DDD with microservices and modular monolith architectures.
• API design, anti-corruption layers, and effective integration strategies.
• Testing domain logic through unit, integration, and contract tests.

Adopting DDD in Teams and Organizations

• Conducting domain discovery workshops and Event Storming sessions.
• Developing and maintaining a ubiquitous language across teams.
• Evaluating success metrics and iterating on the domain model.

Conclusion and Future Directions