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

Foundations of Domain-Driven Design

• Underlying principles and the driving motivations for DDD
• The role of ubiquitous language and collaborating with domain experts
• Differentiating between core, supporting, and generic subdomains

Strategic Design and Bounded Contexts

• Establishing bounded contexts and delineating their responsibilities
• Mapping contexts and applying integration patterns
• Managing team structures, organizational boundaries, and data ownership

Tactical Patterns — Foundational Elements of the Domain Model

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

Domain Services, Repositories, and Factories

• Determining when to employ domain services versus application services
• Repository patterns and considerations for persistence
• Factory patterns for handling complex object instantiation

Modeling Complex Behavior and Invariants

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

Integrating DDD with Architecture and Engineering Practices

• Aligning DDD with microservices and modular monolith architectures
• API design, implementing 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
• Developing and sustaining a ubiquitous language across teams
• Evaluating success and refining the domain model iteratively

Conclusion and Future Directions