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Re: Alternatives to containers/collections (was Re: Requirements for a possible "RDF 2.0")

From: Pat Hayes <phayes@ihmc.us>
Date: Fri, 15 Jan 2010 11:43:24 -0600
Cc: Michael Schneider <schneid@fzi.de>, Jiří Procházka <ojirio@gmail.com>, Semantic Web <semantic-web@w3.org>
Message-Id: <E254AAEF-2904-4727-BCCB-A1DC469960CF@ihmc.us>
To: Jeremy Carroll <jeremy@topquadrant.com>
+1. We have to be very careful about what exactly "optional" is  
supposed to mean in a standard whose intention is to support  
interoperability. If every processor is obliged to be able to process  
it, its not optional. If they aren't, then interopreability is  
compromised.

Pat

On Jan 15, 2010, at 11:23 AM, Jeremy Carroll wrote:

> Michael Schneider wrote:
>>
>> r own specs as /optional/ features of RDF.
>> This reminds me to OWL 2, where the concept of an n-ary datarange  
>> is now
>> also an optional feature, and there is a first type of n-ary  
>> dataranges,
>> namely linear equations, available in its own document [1], maybe  
>> others
>> will follow over time. This strategy settled some longish and heated
>> discussion within the OWL Working Group about whether n-ary  
>> dataranges
>> should go into the core language or not, and if yes, which and to  
>> what
>> degree, etc.
>>
>> [1] <http://www.w3.org/TR/2009/NOTE-owl2-dr-linear-20091027/>
>>
>>
>
> I think optional features are, in general, a bad idea.
> They are technically flawed solutions to political problems.
> If there is not consensus that a feature should be in, then it is  
> non-standard, and should not be included.
>
> See
> http://www.w3.org/TR/qaframe-spec/#option
> "The greatest way to undo the utility of a specification is with too  
> many optional features."
>
> Jeremy
>
>
>

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Received on Friday, 15 January 2010 17:43:54 UTC

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