Domain-Driven Design: Concepts and Practices for Senior Developers Träningskurs

Introduction to Domain-Driven Design

• Principles and motivations behind DDD
• Ubiquitous language and collaboration with domain experts
• Distinguishing core, supporting, and generic subdomains

Strategic Design and Bounded Contexts

• Defining bounded contexts and their responsibilities
• Context mapping and integration patterns
• Handling teams, organizational boundaries, and data ownership

Tactical Patterns — Building Blocks of the Domain Model

• Entities and identity management
• Value objects and immutability
• Aggregates and transaction boundaries

Domain Services, Repositories, and Factories

• When to use domain services vs application services
• Repository patterns and persistence considerations
• Factory patterns for complex object creation

Modeling Complex Behavior and Invariants

• Designing invariants and enforcing business rules
• Event-driven modeling and domain events
• Consistency models: 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: unit tests, integration tests, and contract tests

Adopting DDD in Teams and Organizations

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

Summary and Next Steps