- It needs a way to be semantic, so that common things on the internet must be representable, such as products, events, flight reservations, etc. XML solves this with namespaces. - It needs to be able to provide a way to show documents written in that language in current browsers using a plug-in. XML solves that with XSLT (there will be a standard .xls file for easy backwards compatibility). - It should be able to be just uploaded on an FTP server by the average author, just as HTML, without installing server-side software or messing around with settings. - It should be easy to write for authors.
Isn't that what RDFa is? Which has to advantages over HSS already: 1) it's designed to extend HTML while remaining compatible with older browsers and 2) It's already used by big sites and understood by Google.
Isn't that what RDFa is? Which has to advantages over HSS already: 1) it's designed to extend HTML while remaining compatible with older browsers and 2) It's already used by big sites and understood by Google.