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

Introduction to Domain-Driven Design

• Foundational principles and the rationale for DDD
• Building a ubiquitous language and fostering collaboration with domain experts
• Differentiating between core, supporting, and generic subdomains

Strategic Design and Bounded Contexts

• Defining bounded contexts and assigning specific responsibilities
• Mapping contexts and applying integration patterns
• Managing team structures, organizational boundaries, and data ownership

Tactical Patterns — The Foundation of the Domain Model

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

Domain Services, Repositories, and Factories

• Distinguishing between domain services and application services
• Repository patterns and persistence strategies
• Factory patterns for managing complex object creation

Modeling Complex Behavior and Invariants

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

Integrating DDD with Architectural 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 Across Teams and Organizations

• Conducting domain discovery workshops and Event Storming sessions
• Establishing and maintaining a ubiquitous language across teams
• Measuring outcomes and refining the domain model iteratively

Summary and Future Directions