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

Foundations of Domain-Driven Design

• The core principles and driving motivations behind DDD.
• The role of ubiquitous language and collaboration with domain experts.
• Differentiating between core, supporting, and generic subdomains.

Strategic Design and Bounded Contexts

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

Tactical Patterns — Core Components of the Domain Model

• Entities and managing object identity.
• Value objects and the principle of immutability.
• Aggregates and defining transaction boundaries.

Domain Services, Repositories, and Factories

• Determining when to apply domain services versus application services.
• Repository patterns and persistence strategies.
• Using factory patterns for the creation of complex objects.

Modeling Complex Behavior and Invariants

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

Integrating DDD with Architectural and Engineering Standards

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

Implementing DDD in Teams and Organizations

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

Conclusion and Future Steps