01-backend-ddd-development

To structure a Spring Boot backend with DDD and Clean Architecture, this standard defines a layered blueprint separating domain, application, and infrastructure layers. It provides design rules and templates for domain models, repository ports, and adapters to ensure consistent module organization.

Domain modeling best practices for a Java 21 Spring Boot application involve using clean domain model patterns to isolate business logic. This standard specifies design rules for aggregates, repository ports, and JPA entity mapping strategies to maintain a testable core domain.

Yes, this DDD development standard applies to refactoring existing Spring Boot services. It provides standardized templates for repositories, controllers, security, and testing to guide architectural improvements and feature implementation across legacy codebases.

Implementing repository ports and JPA entity mapping in Clean Architecture requires defining port interfaces in the domain layer and adapter implementations in the infrastructure layer. This standard specifies guidelines for mapping strategies and separating persistence logic.

Security and testing standards for a Spring Boot 3.2+ backend include applying production-grade best practices defined in this blueprint. It specifies rules for securing controllers and structuring tests across domain, application, and infrastructure layers for reliable deployments.