[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: using namespaces to version
> I'm wondering if anyone on the list has any strong opinions about > the use of namespaces for versioning. In particular, am I likely > to run into any problems if I base my namespaces on the Dublin Core > format shown below? > > I quite like the Dublin Core namespaces proposed in the various > Dublin Core in XML proposals at http://dublincore.org/. These have > the form: > > http://purl.org/dc/elements/1.0/ > http://purl.org/dc/elements/1.1/ > http://purl.org/dc/qualifiers/1.1/ > > MathML on the other hand defines one namespace and no facility for > versioning (as far as I know). So a MathML 1.0 processor has no way > of telling if a document with elements from the MathML namespace > (which is http://www.w3.org/1998/Math/MathML ) is invalid or from a > future version of MathML (though one could argue that these are the > same thing as far as the processor is concerned). > > There is a thread on this topic in the archive, although no real > conclusion or recommendation seems to have been reached. The link is > http://lists.xml.org/archives/xml-dev/200008/msg00612.html . If > anyone knows of other threads in the archive that might be relevant, > could they bring them to my attention? Yes. See the thread starting at http://lists.xml.org/archives/xml-dev/200103/msg00995.html I quite like Eric's proposal, and have put it into practice. -- Uche Ogbuji Principal Consultant uche.ogbuji@f... +1 303 583 9900 x 101 Fourthought, Inc. http://Fourthought.com 4735 East Walnut St, Ste. C, Boulder, CO 80301-2537, USA Software-engineering, knowledge-management, XML, CORBA, Linux, Python
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