Message format used by Qworum, a platform for Web mashups; may be sent from one website to another to provide interactive services; formatted in XML and may contain remote procedure calls RPC.

The content type of Qworum messages is "application/xml" (formerly "application/x-qworum+xml," which is now obsolete). This identifier is used by Web browsers to process the Qworum message files.

More information about Qworum is available at the Qworum website.