The image shows the architecture of an Oracle Mobile Hub application that can access data from Oracle Fusion Applications Cloud Service using REST APIs.
The image shows Oracle PaaS as a container, within which is Oracle Mobile Hub. It also shows Oracle SaaS as a container, within which is Oracle Fusion Applications Cloud Service, which in turn contains Oracle Sales Cloud. A mobile client connects to Oracle Mobile Hub. Within Oracle Mobile Hub, a Connector component connets bidirectionally with Oracle Sales Cloud using REST.