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

Introduction to Domain-Driven Design

• Core principles and the rationale behind DDD
• Distinguishing between core, supporting, and generic subdomains

Strategic Design and Bounded Contexts

• Establishing bounded contexts and clarifying their responsibilities
• Context mapping and standard integration patterns

Tactical Patterns — The Foundation of the Domain Model

• Entities and managing identity
• Value objects and ensuring immutability
• Aggregates and defining transaction boundaries

Domain Services, Repositories, and Factories

• Determining when to apply domain services versus application services
• Repository patterns and key persistence considerations
• Utilizing Factory patterns for complex object instantiation

Modeling Complex Behavior and Invariants

• Designing invariants to enforce 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, anti-corruption layers, and integration strategies
• Testing domain logic through unit, integration, and contract tests

Adopting DDD in Teams and Organizations

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

Summary and Next Steps