“A C4 component diagram for an order service. An API gateway calls an order controller, then an order validator and order service. The order service uses an order repository and orders database, event publisher, inventory service, payment client and audit logger.”
図の背後にある意思決定を読み解く。
Uses a controller and validator before business logic.
Isolates database access in an order repository.
Makes inventory, payment, events and audit dependencies explicit.
Use this component view when explaining the responsibilities inside an order-service container.
よくある質問
When should I use a C4 component view?
Use it when a container is important enough to explain its major internal responsibilities and dependencies.
What is the role of a repository?
It isolates persistence operations so business logic does not depend directly on the database.
Does C4 prescribe component names?
No. Names should describe meaningful responsibilities in the software being documented.