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Isn't the point to use a means the XML processor isn't free to ignore per specification? That is why the concept of "reliability" was introduced although one could say "efficiency" and mention the cases of XPointers and serialization. One extends the system vocabulary precisely because it extends the requirement for the XML processor. If all you need is a convention, a PI or an alternative namespace are equally ignorable. Otherwise, we could just go on as is: "if you need an ID, spec a DTD and cite it in the contract for the communication when using well-formed files. This is only as reliable as your partners are diligent." Independent parties should not be extending the rules for the system vocabulary. That is precisely what so many here beat MS up for. There is no QED here. There is nothing to be proved other than that a solution meets a requirement and that there is a rough consensus on the necessity for the requirement and the effectiveness of the solution. Then it is a sales job to the Web Architecture group. This is why a precisely stated requirement means so much to this kind of process: traceability. len -----Original Message----- From: Elliotte Rusty Harold [mailto:elharo@m...] At 10:51 AM -0500 11/5/01, Champion, Mike wrote: >We need to figure out whether this >discussion is aimed at persuading the W3C to change the "system vocabulary" >to support IDs without requiring external DTDs/Schemas, or whether it is -- >in the tradition of SAX and RDDL -- aimed at producing a convention that is >orthogonal to the W3C's Recommendions. The former strongly suggests >attributes, but the latter more or less demands PIs, as well as some >"political" work to make PIs less of an endangered species. > The latter solution doesn't demand PIs. It just prevents us from using the xml: prefix. If we wanted to be orthogonal to the W3C, then it's easy enough to define an xid:id prefix with xid mapped to http://xml.org/id/ or something like that. I think this has already been suggested as a way of adding multiple IDs to things. There's no need to get PIs involved.
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