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

Foundations of Domain-Driven Design

• The core principles and rationale for DDD
• Developing ubiquitous language through collaboration with domain experts
• Differentiating between core, supporting, and generic subdomains

Strategic Design and Bounded Contexts

• Establishing bounded contexts and defining their scope
• Utilizing context maps and integration patterns
• Managing team structures, organizational limits, and data ownership

Tactical Patterns: The Building Blocks of the Domain Model

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

Domain Services, Repositories, and Factories

• Determining when to use domain services versus application services
• Repository patterns and considerations for persistence
• Applying factory patterns for complex object instantiation

Modeling Complex Behaviors and Invariants

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

Aligning DDD with Architecture and Engineering Practices

• Integrating DDD with microservices and modular monoliths
• API design, anti-corruption layers, and integration strategies
• Testing domain logic through unit, integration, and contract tests

Implementing DDD in Teams and Organizations

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

Conclusion and Future Directions