Microservices Design

Service Boundaries

Define services around business capabilities, not technical layers. Each service owns its data store and exposes a clear API contract.

order-service/       -> owns orders table, publishes OrderCreated events
inventory-service/   -> owns inventory table, subscribes to OrderCreated
payment-service/     -> owns payments table, handles payment processing
notification-service -> stateless, subscribes to events, sends emails/SMS

Event-Driven Communication