ShopNexus models business logic with Domain-Driven Design (DDD). Service boundaries align with bounded contexts, so each service speaks one consistent domain language.

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Building blocks

An explicit boundary within which a domain model and its language are consistent. Each service typically maps to one bounded context.
A cluster of domain objects treated as a single unit for changes. The aggregate root enforces invariants and is the only entry point for modifications.
Entities have identity that persists over time; value objects are defined entirely by their attributes and are immutable.
A record of something meaningful that happened in the domain, used to communicate change within and across services.
Provides collection-like access to aggregates, hiding the persistence mechanism from the domain.

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Ubiquitous language

Within a bounded context, code, conversations, and documentation use the same terms for the same concepts. This shared language reduces translation errors between domain experts and developers.