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   Re: [xml-dev] Quiz: static transformation vs. JIT generation

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I'm assuming this is another question off of the IBM "XML and related
technologies" exam?  That test is in such dire need of being updated
by someone like Elliotte Rusty Harold, Michael Kay, Michael Rys, Mike
Champion, Jeni Tennison, David Carlisle or anybody else who could be
considered at this type of competency level (Hey, I bet Wendell Piez
would write one of the best tests of all!) ... Anybody in whom Tim
Bray could nod his head in approval is all it would take and you would
at least have people interested in becoming certified...  Maybe I've
missed some important occurence that has led to a certification
solution that holds a bit more water than this "thing" but from my
viewpoint I don't think I have come across one person in whom believes
that the current state of XML-related certifications are worth the
paper they're printed on.  This question is yet one more prime example
in which you're left wondering if the exam itself is in need of some
professional certifications.

If anybody knows of something, please speak up as it would be great to
know of something that we all can point to as worthy of spending a few
hundred bucks and a weekends worth of study time to obtain...

On Sun, 27 Mar 2005 12:36:47 -0800, Bob Foster <bob@objfac.com> wrote:
>  > Is there more to "static
>  > transformations" than I understand ?
> Probably less. "static transformation" is a truly awful term for dynamic
> transformations done when new information arrives. A "static
> transformation" can only be interpreted as a storage technique at all if
> you assume that the result of the transformation is then stored on the
> website awaiting requests for it.
> The trade-off this question is getting at so clumsily is between
> preparing query responses in advance and preparing them on demand. The
> emphasis on "real time" response stacks the deck in favor of preparing
> in advance, because you can always send faster than compute and send.
> However, you will sometimes be sending out stale data, because you don't
> wait when a new answer is in the process of being computed. The day
> trader who polls you every thirty seconds won't thank you when he gets
> his ticker update 29 seconds late. The trader would be almost as well
> off if you sent him email.
> Incidentally, you keep trying to insert HTML into the discussion, but
> there is no mention of HTML in the problem. One would assume (however
> unrealistically) that query responses are being sent as XML.
> Bob Foster
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:: M. David Peterson ::
XML & XML Transformations, C#, .NET, and Functional Languages Specialist


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