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

Foundations of Domain-Driven Design

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

Strategic Design and Bounded Contexts

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

Tactical Patterns — Building Blocks 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
• Using factory patterns for complex object creation

Modeling Complex Behavior and Invariants

• Designing invariants and enforcing 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 monoliths
• API design, anti-corruption layers, and integration strategies
• Testing domain logic through unit, integration, and contract tests

Adopting DDD in Teams and Organizations

• Facilitating domain discovery workshops and Event Storming sessions
• Creating and managing a ubiquitous language across teams
• Measuring success and iterating on the domain model

Summary and Next Steps