This image shows an illustration of a microservices deployment communication workflow in the cloud. Kubernetes managed containers with three Helidon microservices: Order Service, Inventory Service, and Delivery Service. The Order Service has a Search Reviews feature and the Delivery Service has a Route Mapping feature. There's also an Analytics user interface component.

There are two Oracle Autonomous Transaction Processing instances, ATP 1 and ATP 2. The microservices and Analytics user interface communicate with each other and have two-way communication ATP2. Communication from ATP 1 is one-way to the Order Service. Asynchronous transactional messaging takes place between the two instances (ATP1 and ATP2). The communication paths are described in the surrounding text.