The Shared Kernel pattern addresses the challenge of integrating two or more distinct bounded contexts in Domain-Driven Design. It arises when a small, well-defined part of the domain model is inherently shared and crucial to the operation of multiple contexts. Instead of duplicating this logic (leading to …

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The Aggregate pattern is a core concept in Domain-Driven Design (DDD). It defines a cluster of domain objects (Entities and Value Objects) that are treated as a single unit. This unit is responsible for maintaining data consistency within its boundaries and presenting a cohesive interface to the outside world. An …

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The Saga pattern is a distributed transaction management pattern for coordinating a sequence of local transactions across multiple microservices. Unlike traditional distributed transactions (like two-phase commit), Sagas don’t rely on centralized locking or coordination. Instead, each local transaction updates …

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