Summary

This chapter explored DDD, a software development methodology that aims to align software systems with complex business domains. DDD focuses on creating models that accurately reflect the domain by fostering collaboration between technical teams and domain experts. The chapter emphasized the importance of understanding and structuring domain elements to build systems that are adaptable, maintainable, and aligned with business goals. This approach is particularly beneficial for applications such as healthcare management systems, which involve intricate relationships, workflows, and rules.

The chapter began by introducing the foundational concepts of DDD, including entities, which are objects with unique identities and life cycles. Entities, such as Patient in a healthcare system, represent distinct objects whose attributes may change over time while their identity remains constant. DDD also relies heavily on models, which serve as abstractions to solve domain problems....