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

Introduction to Domain-Driven Design

• The foundational principles and drivers behind DDD
• Establishing a ubiquitous language and collaborating effectively with domain experts
• Differentiating between core, supporting, and generic subdomains

Strategic Design and Bounded Contexts

• Defining bounded contexts and delineating their specific responsibilities
• Creating context maps and identifying integration patterns
• Addressing team structures, organizational boundaries, and data ownership

Tactical Patterns — The Fundamental Building Blocks of Domain Models

• Managing entities and their identity
• Utilizing value objects and enforcing immutability
• Structuring aggregates and defining transaction boundaries

Domain Services, Repositories, and Factories

• Determining when to employ domain services versus application services
• Implementing repository patterns and considering persistence strategies
• Using factory patterns for the creation of complex objects

Modeling Complex Behaviors 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 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 tests, integration tests, and contract tests

Adopting DDD in Teams and Organizations

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

Recap and Future Directions