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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Getting specs/standards right (was UPA and schema handling)
 On Mon, 18 Oct 2004 10:24:23 +0100, Michael Kay <michael.h.kay@n...> wrote: > Only if its work is confined to giving a yes/no answer to the validity > question. > > If the work is to associate types with individual element instances, then > UPA is rather important. Once again, what is a critical use case in the "data" world is an annoying hinderance to getting work done in the 'document ' world :-) (and vice-versa, I'm not taking sides!). It's hard for me to get morally outraged at XMLSpy for ignoring or creatively interpreting a *recommendation* in a way that fits their experience and their understanding of their paying customers' needs. If XML Schema were a *standard* in the accepted sense, this would be unacceptable, of course -- I don't want electrical equipment manufacturers "creatively interpreting" the relevant ISO standards to accomodate their understanding of my price vs safety tradeoff. But Schema is something designed by a committee that reflects their collective best guess, it doesn't embody the kinds of real science and engineering experience that went into the ISO standards for electrical transmission equipment. There seem to be two different ways forward: - Moving XML recommendations toward true standards status, presumably clarifying and refactoring them to reflect actual experience over the last few years, and developing rigorous conformance tests. - Accepting that they are indeed recommendations from joint design efforts; creative interpretation and ad-hoc profiling are part of the process necessary to build the base of experience upon which real standardization can build, someday. I can live with either, and IMHO different XML specs need different approaches. I don't believe the intermediate situation that we're in now is viable, where somewhat loosely-written and/or unproven specs are treated as if they were standards by some, but as if they were informal recommendations by others. 
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