[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Architectural Forms and XAF
On Tue, 29 Feb 2000, David Wang wrote: > > It's about pruning trees (with possible local shuffling of > > morphologically fungible parts.) > > How is it much different than the monolithic XSLT work going on > right now (is it a fair analogy to say that the virtual > "architectural document" can be created by some hard-coded XSL > stylesheet - if not, how exactly does XSLT relate to "generating > the architectural document", if any). Yes, I'm pretty sure XSLT could generate the architectural document (if it can't, then something is wrong with XSLT!) The difference is in the word "virtual": AFs allow for multiple taxonomies at the same time (sort of like running a different XSLT stylesheet for each one), so the major point is "extraction" rather than transformation. Using XSLT is like using a cannon where a peashooter would do (one doesn't need a Turing-complete language to extract architectural instances.) > I mean, I see half of AF as a way of specifying the association > between elements/attributes, respectively (not elements to > attributes, though), If you mean <foo><bar>baz</bar></foo> <==> <foo bar="baz"> that's right: AFs don't provide for this. (There a number of "good" reasons, but that's a separate debate. I'm sorely tempted to offer a reason or two, but I desist...) > and the other half is the pruning/reordering the morphologically > fungible parts. Is there anything I'm grossly missing? The two halves are the same thing. The rubric is attribute-based processing (for which, btw, plenty of precedents exist, e.g. CSS styling based on the CLASS attribute), in terms of which generic identifiers ("tagnames") are values morphologically. (I believe this is one of the major stumbling blocks to understanding AFs: generic identifiers and attribute names aren't names of the same order.) The effect looks like renaming, but what's actually going on is assignment of values (of "regular" attributes, and two "special" ones, #GI and #CONTENT) to a new taxonomy. The main purpose of such an exercise, of course, is to take advantage of the fact that such a new taxonomy has known semantics (and thus provides an "interpretation" of the original data.) You haven't missed anything:) Arjun *************************************************************************** This is xml-dev, the mailing list for XML developers. To unsubscribe, mailto:majordomo@x...&BODY=unsubscribe%20xml-dev List archives are available at http://xml.org/archives/xml-dev/threads.html ***************************************************************************
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