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

Introduction to Domain-Driven Design

• Governing principles and operational motivations for implementing DDD
• Establishing a ubiquitous language and fostering collaboration with subject matter experts
• Classification of core, supporting, and generic subdomains for governance purposes

Strategic Design and Bounded Contexts

• Definition of bounded contexts and the assignment of specific responsibilities
• Context mapping methodologies and integration patterns for system boundaries
• Alignment of team structures, organizational boundaries, and data ownership models

Tactical Patterns — Building Blocks of the Domain Model

• Entity definitions and strategies for identity management
• Value object implementation and enforcement of immutability
• Aggregate structures and the delineation of transaction boundaries

Domain Services, Repositories, and Factories

• Distinguishing between domain services and application services
• Repository design patterns and persistence architecture considerations
• Factory application for the creation of complex domain objects

Modeling Complex Behavior and Invariants

• Design of system invariants and the enforcement of business regulations
• Event-driven modeling methodologies and the use of domain events
• Consistency models, including eventual consistency and saga patterns

Integrating DDD with Architecture and Engineering Practices

• Alignment of DDD principles with microservices and modular monolith architectures
• API design, anti-corruption layers, and strategic integration approaches
• Verification of domain logic through unit, integration, and contract testing

Adopting DDD in Teams and Organizations

• Facilitation of domain discovery workshops and Event Storming sessions
• Development and governance of a ubiquitous language across organizational units
• Assessment of implementation success and iterative refinement of the domain model

Summary and Next Steps