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[Bug 17312] [QT3] alternate result for K-DocumentURIFunc-2a

From: <bugzilla@jessica.w3.org>
Date: Fri, 28 Sep 2012 22:08:49 +0000
Message-Id: <E1THijp-0004zQ-S9@jessica.w3.org>
To: public-qt-comments@w3.org

--- Comment #5 from Michael Kay <mike@saxonica.com> 2012-09-28 22:08:49 UTC ---
>With the use of this option, our "guarantee" is negated. Not much of a guarantee.

If the spec for my electricity supply stated that the voltage was guaranteed to
be within 1% of 240v unless I chose to select a tariff in which it was allowed
to vary by 3%, I would regard that as a very solid guarantee. I can't see the
problem: we put this rule in so that users who wanted to avoid the high costs
of determinism were allowed to select a cheaper and less reliable service if
they wanted to. We don't have to define the shape and colour of the switch by
which they select this option: it's not our normal practice to put all
implementation-defined and implementation-dependent parameters in the static or
dynamic context.

Determinism is particularly expensive in the case of streaming, because when
data is arriving streamed say from a satellite the only way to achieve our
determinism guarantees is to save a copy of the data either on disk or in
memory just in case it is needed more than once. This in fact defeats the whole
point of many streaming applications, which is to filter the data before
storing it.

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Received on Friday, 28 September 2012 22:08:51 UTC

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