The image is an architectural diagram of the Oracle Offline Persistence Toolkit. It shows an Oracle JET application sending requests (GET, PUT, DELETE, POST, and PATCH) to the Persistence Manager which contains the Fetch API, an XHR Adapter, Default Fetch Event Listener, and Registration data. The application can also send customized logic listeners to the Sync Manager which receives content from the Persistence Manager. The Persistent Manager sends and receives data from persistent storage and sends the application’s requests to the Sync Manager and back-end servers.