SYSTEM GRAPH
Understand the dependencies between your systems.
Explore how applications, services and interfaces connect—and follow the paths a change could affect.
ARTUS / ARCHITECTURE CONTEXT
CUSTOMER EXPERIENCE
Checkout UI
Web application
Calls → Checkout API
APPLICATION SERVICES
Checkout API
POST /checkout
↓ Calls
Order service
Selected · Orders team
Reads / writes → Order database
Publishes → OrderCreated
Notification service
Messaging team
↑ Consumes · OrderCreated
DATA & MESSAGING
Order database
Order persistence
↑ Reads / writes
Order events
Interface · OrderCreated
Consumes → Notification service
Illustrative example · Draft interaction design
The dependency continues beyond your service.
A local interface change can affect consumers owned by another team.
INTERFACE / OrderCreated
ORDERS TEAM
Order service
Publishes → OrderCreated
EVENT CONTRACT / V4
OrderCreated
customer_id
Registered customer assumed
MESSAGING TEAM
Notification service
Consumes ← OrderCreated
Guest checkout changes the identity assumption.
Review the event contract with both owners; shared fields alone do not establish consumer behaviour.
Illustrative example · Interface and ownership records, not implementation code.
Choose a system. Follow its connections.
Keep Order service selected while exploring upstream, downstream and documented deployment context.
Know why the connection is there.
Open a relationship to inspect its source and review uncertain dependencies.
Review change with the system in view.
Bring architecture dependencies and ownership into the same conversation.
