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

Introduction to Domain-Driven Design

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

Strategic Design and Bounded Contexts

• Establishing bounded contexts and defining their specific responsibilities
• Context mapping and various integration patterns
• Managing team structures, organizational boundaries, and data ownership

Tactical Patterns — The 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

• Determining when to utilize domain services versus application services
• Repository patterns and key persistence considerations
• Factory patterns for managing complex object creation

Modeling Complex Behavior and Invariants

• Designing invariants to enforce critical business rules
• Event-driven modeling and the use of domain events
• Consistency models, focusing on 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 effective 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
• Establishing and maintaining a ubiquitous language across different teams
• Measuring success and continuously iterating on the domain model

Summary and Recommended Next Steps