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

Fundamentals of Domain-Driven Design

• Core principles and the rationale behind DDD
• Establishing ubiquitous language and collaborating with domain experts
• Differentiating core, supporting, and generic subdomains

Strategic Design and Bounded Contexts

• Establishing bounded contexts and assigning their responsibilities
• Mapping contexts and implementing integration patterns
• Managing team structures, organizational limits, and data ownership

Tactical Patterns: The Building Blocks of the Domain Model

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

Domain Services, Repositories, and Factories

• Determining when to use domain services versus application services
• Repository patterns and considerations for persistence
• Factory patterns for creating complex objects

Modeling Complex Behavior and Invariants

• Formulating invariants and enforcing business rules
• Event-driven modeling and the use of domain events
• Consistency models: focusing on eventual consistency and sagas

Combining DDD with Architecture and Engineering Practices

• 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

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

Conclusion and Future Directions