[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: RE: RE: XML/RDF
>As for Mozilla (dmoz.org?) and RSS 1.0, to what extent are these simply XML >formats that just happen to be RDF-friendly, as far as most users >are concerned? In other words, what can I do with RSS 1.0 or dmoz.org >data because it is RDF? Point of information : Mozilla is the open source browser, the codebase behind Netscape (which uses RDF), dmoz.org is the Open Directory (which uses RDF). I think even the most rabid RDF fanatic (RRDFF?) would have to admit that pretty much anything you can do with RDF could be done using custom XML, but I reckon the biggest practical benefit is that the RDF allows extensibility with minimal extra work. You gave me an easy example with RSS 1.0 and dmoz.org: lets say I'm a news syndicator that covers a really wide range of topics. The basic syndication feed could be done using RSS, and each news item could have its topic identified using a dmoz.org category. Ok, there will be processing work involved at both the distribution and reception sides, but the expression of the information is a no-brainer and what's more the information will be expressed in an umambiguous way that existing and future RDF apps will understand - if the news items had a permanent page then it could be fed into the dmoz system essentially unchanged, and the feeds should be readable using any half-decent existing RSS reader, just the additional info will be ignored. >(Please don't say "use any RDF tool to process >it" :-) I came close... >I don't have no stinkin' RDF tools around because I can't think of >anything useful to do with them!... I'm asking what concrete >applications/ontologies/whatever can be brought to bear on these specific >data sources) The chicken and egg situation has hampered things a lot - no-one developing tools because the RDF-expressed data wasn't there and vice versa. However initiatives like Adobe's are in effect filling up the backend, and server-side tools are slowly beginning to appear. There still hasn't been much activity at the client-side/desktop (with the exception perhaps of Netscape) but the fact that people like Mitch Kapor (of Lotus 1-2-3 fame) are looking to use RDF in their applications would suggest that it is only a matter of time. A couple of server-side examples that can be played with now : the TAP demos [2] (Google augmented with semantic search) and MusicBrainz (music/CD database - only has one entry for 'Nocturnal Emissions' so far, so still a long way to go ;-) Cheers, Danny. [1] http://blogs.osafoundation.org/mitch/000007.html [2] http://tap.stanford.edu/tap/demos.html [3] http://www.musicbrainz.org/
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