Streaming hypermedia

Hypermedia is to structure your user interface through media types and hypermedia controls. The media type is something the hypermedia client can show. The hypermedia control is something the user can do in the hypermedia client.

HTML over HTTP via Content-Type: text/html lets you show the user interface once. When the underlying data changes, an exceptional case is hit. HTML over HTTP via Content-Type: text/event-stream lets you stream updates. Your hypermedia client can reflect current state.

A better term may be live hypermedia. The interface is live, not stale. That live interface may be implemented with streaming.