The idea is usually explained as “use the same words as the business”, which sounds like a style preference. The version with consequences is that a word meaning…
The synchronous call between two services was the reason both were down. Publishing an event decouples their availability — and makes eventual consistency a business decision.
Publishing an event from a service layer means the aggregate can change state without the event being raised, because the two are in different places and only convention…
Two customers with the same name are different customers; two amounts of 49.00 TRY are the same amount. That distinction decides equality, mutability and whether the thing needs…
The rule that makes aggregates useful is that one transaction touches one aggregate. Everything else follows: what belongs inside, what is referenced by id, and where consistency is…
Deciding services first and then discovering the relationships produces boundaries that cut through a transaction. Mapping the relationships first tells you which splits are cheap and which are…
The reporting code had one caller and a six-hour test run. Finding the seam, dealing with the shared schema honestly, and routing traffic gradually rather than switching.
The word usually gets explained in terms of services and databases, which puts the mechanism before the reason. A bounded context is the region within which a word…