Re: WGLC: p1 MUSTs

"Roy T. Fielding" <fielding@gbiv.com> Thu, 01 August 2013 04:48 UTC

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From: "Roy T. Fielding" <fielding@gbiv.com>
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Date: Wed, 31 Jul 2013 21:45:57 -0700
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To: Benjamin Carlyle <benjamincarlyle@soundadvice.id.au>
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Subject: Re: WGLC: p1 MUSTs
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On Apr 30, 2013, at 2:10 PM, Benjamin Carlyle wrote:
> In the vein of clarifying what is meant by "process" I would also suggest dropping the "be able to" wording wherever it appears in MUST statements. Compliance can tested for what a particular actor does or does not do. It can't be tested for what the actor is capable of doing.
> 
I looked and found that "be able to" is the correct wording.  It is
possible to test for capabilities -- it is just harder to know
whether the failure is due to a lack of capability or an explicit
decision not to.  In these cases, we want to allow the implementation
to decide not to parse at all.

....Roy