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

Introduction to Domain-Driven Design

• Foundational principles and the rationale behind DDD
• Establishing a ubiquitous language and collaborating with domain experts
• Identifying core, supporting, and generic subdomains

Strategic Design and Bounded Contexts

• Defining bounded contexts and their specific responsibilities
• Developing context maps and integration strategies
• Aligning technical boundaries with team structures and data ownership

Tactical Patterns — The Building Blocks of the Domain Model

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

Domain Services, Repositories, and Factories

• Distinguishing between domain services and application services
• Applying repository patterns and addressing persistence requirements
• Using factory patterns for complex object instantiation

Modeling Complex Behavior and Invariants

• Designing invariants to enforce strict business rules
• Leveraging event-driven modeling and 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, anti-corruption layers, and integration approaches
• Testing domain logic through unit, integration, and contract tests

Adopting DDD in Teams and Organizations

• Facilitating domain discovery workshops and Event Storming sessions
• Maintaining a ubiquitous language across organizational boundaries
• Evaluating success metrics and iterating on the domain model

Summary and Next Steps