Re: [ubl-ndrsc] XPath futures

> I came away with the impression that we should feel confirmed in our
> wariness of schema-aware software

^^^^^^^^^^^^

Did you mean "schema-aware software" or "type-aware software"?

Eve L. Maler wrote:
> While at the CSW XML Summer School last week (giving a UBL tutorial and
> therefore missing the UBL F2F), I attended an XSLT Expert Forum, where
> Jeni Tennison, Sebastian Rahtz, Bob DuCharme, and others reviewed the
> state of the art in XSLT/XPath V1.0 and where it's going in V2.0.  I
> thought it might be useful to share some of the information I learned
> there, since it relates to our previous global/local discussions in UBL.
>  (Apologies if you all know this already.)  I do *not* mean to bring up
> old discussions for re-decision, merely provide context.
>
> One of the rationales that I gave for supporting global elements was
> that if you wanted to reuse local-only UBL for making your own document
> types, the "head" of a tree of reuse would require a mapping from the
> UBL type to a foreign element, even if the type needed no changes.
> (Below the "head", the elements would be in the UBL namespace, not the
> foreign one.)  This means that non-type-aware technologies such as XPath
> V1.0 would require changes to existing stylesheets/programs to change
> the "head" element's name if nothing else.
>
> We in UBL have been assuming that, since XPath and XSLT V2.0 will be
> type-aware, this problem will be solved at some point in the near
> future, potentially blunting this rationale.  However, I learned that
> XPath and XSLT V2.0 have conformance levels, and the higher level -- the
> schema-aware one -- doesn't look like it will be very common at all. W3C
> standardization is, optimistically, 9-12+ months away, depending on the
> appearance of implementations.  And there continues to be a lot of
> controversy in the XML development community around the usage of the
> Post-Schema Validation Infoset (PSVI)...
>
> I came away with the impression that we should feel confirmed in our
> wariness of schema-aware software when trying to attend to our "various
> and sundry" principle.
>
> For what it's worth,
>
>
Eve
>

--
Eduardo Gutentag
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