XOXO & OPML & Simple List Extentions
There’s a lot of buzz around Dave Winer’s OPLM, an XML dialect for outlines. Wikepedia says:
[tease]
OPML (Outline Processor Markup Language) is an XML format for outlines. Originally developed by Radio UserLand as a native file format for an outliner application it has since been adopted for other uses, the most common being to exchange lists of RSS feeds between RSS aggregators.
The OPML specification defines an outline as a hierarchical, ordered list of arbitrary elements. The specification is fairly open which makes it suitable for many types of list data.
XOXO (Extensible Open XHTML Outlines) looks like a solid competitor to OPML.
Courtesy of Microsoft, we also have Simple List Extensions “designed as extensions to existing feed formats to make exposing ordered lists of items easier and more accessible to users.”
Who knows which of these methods of describing lists will win? I’d give a slight edge to OPML, because Winer promotes it a lot. But on technical merit… you tell me. My hunch is XOXO is the crisp, clean and simple solution.
[via decafbad, Les Orchard] ]