Summary
In this chapter, we delved deeply into the main tactical patterns of DDD. We started with entities, which are objects defined not by their attributes but by a thread of continuity and identity. These entities possess a distinct identity that runs through different states and transformations over time, making them critical in modeling real-world scenarios where identity persistence is crucial.
We moved on to value objects, which are defined entirely by their attributes. Value objects lack a distinct identity and are inherently immutable, offering a way to model concepts that can be described by their attributes alone, such as a quantity or a price. This immutability simplifies their use and ensures consistency across the system.
Aggregates were introduced as a key concept for maintaining consistency within the system. An aggregate is a cluster of entities and value objects that are treated as a single unit for data changes. The root entity of an aggregate guarantees...
