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Re: Semantic equivalence of xml documents

• To: "Steven J. DeRose" <sderose@a...>
• Subject: Re: Semantic equivalence of xml documents
• From: Alexander Johannesen <alexander.johannesen@g...>
• Date: Tue, 4 Oct 2005 08:53:40 +1000
• Cc: xml-dev@l...
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• Reply-to: Alexander Johannesen <alexander.johannesen@g...>

Hi Steven,

Sorry for the late reply; been off holidaying ;

On 9/28/05, Steven J. DeRose <sderose@a...> wrote:
> Take for example the case Yves originally raised: a <company> with
> multiple <person> elements. He wants to test whether two specific
> <company> elements have all the same children, but without worrying
> about their order. That seems like a pretty well-defined question
> (except for some details I mention below).

XTM alone is only an XML format for Topic Maps storage and exchange.
There are two parts of Topic Maps that comes to mind here; TMQL (query
language) and TMCL (constraints language) who together will work out
if your snippets of Topic Maps validates to given constraints.
(http://www.isotopicmaps.org/tmcl/)

> So it should be doable in principle. But how might you actually
> express this in XTM or RDF?

Well, you don't really, you use the constraints or query language,
which might highten the complexity of the task to the point of not
bothering doing it, I guess. :) If you live in a Topic Maps world you
do these things all the time, but if you're new to it it might seem a
bit overwhelming. All I can do is to encourage people to press on; it
really is a better world. :)


Alex
--
"Ultimately, all things are known because you want to believe you know."
                                                         - Frank Herbert
__ http://shelter.nu/ __________________________________________________

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