Re: Marketplace XML Vocabularies
On Thu, Dec 31, 2009 at 08:25:51AM -0500, Costello, Roger L. wrote: [...] > 1. What are the requirements for an XML vocabulary to find presence in the > marketplace? Must the XML vocabulary have both standardized meaning and > behavior? "Meaning" is a difficult word, but the important thing to remember is that meaning in XML documents is "extrinsic" -- it's imposed on the XML documents by applications. This is different from (say) RDF, where the meaning is "intrinsic" and is considered to be hard-wired into the document. (There's a bit of a conflict when you consider that the only standard way to interchange RDF uses XML, but I digress). XML documents do not, strictly speaking, have "behaviour". Again, behaviour is imposed on the documents by appliations - e.g. I've seen different programs do totally different things with the same SVG document, such as producing a list of colours used, or extracting the text and replacing it with a translated version, even though the SVG spec says a circle is a circle... The document doesn't move, or behave, the application does. Framk Romano once said (at a multimedia conference), "The printed word isn't dead. It just looks that way because it doesn't move." AN XML vocabulary is the same in terms of marketplace as any other technology - (1) enabling - you can do something you couldn't do before (2) improving - you can make something better than before (3) facilitating - it makes a process easier or faster or cheaper Liam -- Liam Quin, W3C XML Activity Lead, http://www.w3.org/People/Quin/ http://www.holoweb.net/~liam/ * http://www.fromoldbooks.org/
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