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

Fundamentals of Domain-Driven Design

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

Strategic Design and Bounded Contexts

• Defining the scope and responsibilities of bounded contexts
• Mapping contexts and implementing integration patterns
• Navigating team structures, organizational boundaries, and data ownership

Tactical Patterns: The Building Blocks of Domain Models

• Entities and managing identity within the domain
• Value objects and the benefits of immutability
• Aggregates and defining transaction boundaries

Domain Services, Repositories, and Factory Patterns

• Determining when to use domain services versus application services
• Applying repository patterns with persistence in mind
• Using factory patterns for the creation of complex objects

Modeling Complex Behaviors and Business Invariants

• Designing invariants to enforce critical business rules
• Implementing event-driven modeling and domain events
• Understanding consistency models, including eventual consistency and sagas

Aligning DDD with Architectural and Engineering Standards

• Harmonizing DDD with microservices and modular monolith architectures
• API design, anti-corruption layers, and system integration strategies
• Testing domain logic through unit, integration, and contract tests

Implementing DDD Across Teams and Organizations

• Facilitating domain discovery workshops and Event Storming sessions
• Building and maintaining a consistent ubiquitous language across teams
• Measuring outcomes and iterating on the domain model for continuous improvement

Course Summary and Recommended Next Steps