Re: [a11y-metadata-project] Re: Accessibility for schema.org Re: Updated Wiki to cover proposal

On Tue, 19 Nov 2013 01:10:36 +0100, Liddy Nevile  
<liddy@sunriseresearch.org> wrote:

> There is a registry proposed in a project run by Gregg Vanderheiden et  
> al but also, at ISO we are setting up a registry - the proposition has  
> been for that to be the same as Gregg is talking about but it has not  
> happened...
> I hope what we have for ISO is the same as the schema.org stuff in the  
> end so would like to have a single registry, for sure..

Yes, one possibility is that we will have several registries of values.  
Which would be a pretty big failure given that we really do want the terms  
to be somewhat regularised.

And not making it an enumeration to avoid haveing to make all the types  
"the" schema.org version of that seems reasonable to me. In which case  
using URLs would be great if people are using the RDFa prefix mechanism,  
but would be a right pain in microdata. So I am inclined to suggest that  
we maintain the list of expected values on the wiki, and if the various  
registry projects turn into something useful we would of course aim to  
align quickly.

cheers

Chaals

> Liddy
>
>   ...
> On 19/11/2013, at 8:10 AM, Matt Garrish wrote:
>
>> Agree. The properties weren't conceived as a closed enumeration, and  
>> defining in the schema.org domain doesn't seem appropriate.
>>
>> Wasn't the idea of a registry of values floated earlier in the process?
>>
>> Matt
>>
>> -----Original Message----- From: Martin Quiazon
>> Sent: Monday, November 18, 2013 3:50 PM
>> To: Dan Brickley ; Charles McCathie Nevile
>> Cc: Peter F. Patel-Schneider ; <public-vocabs@w3.org> ;  
>> a11y-metadata-project@googlegroups.com
>> Subject: Re: [a11y-metadata-project] Re: Accessibility for schema.org  
>> Re: Updated Wiki to cover proposal
>>
>> I'm with Dan on this. In practice there are lots of existing values and
>> the potential for many future values; it's not feasible to have a fixed
>> enumeration that encompasses them all.
>>
>> On 11/18/13 12:47 PM, "Dan Brickley" <danbri@google.com> wrote:
>>
>>> On 18 November 2013 13:36, Charles McCathie Nevile
>>> <chaals@yandex-team.ru> wrote:
>>>> On Tue, 19 Nov 2013 02:44:39 +0800, Peter F. Patel-Schneider
>>>> <pfpschneider@gmail.com> wrote:
>>>>
>>>>> schema.org has enumerated types, which might be better to use than  
>>>>> text
>>>>> with a list of expected strings.
>>>>
>>>>
>>>> Yes, that was what I was thinking... We should make that change.
>>>
>>> I'm not so convinced yet. There are quite a lot of values, and given
>>> schema.org's flat namespace we would have to consider each term as
>>> _the_ schema.org use of that word.
>>>
>>> e.g. MathML; sound; captions; latex; timing etc. would become
>>> http://schema.org/sound ...
>>>
>>> My inclination (especially having seen the variety of views earlier in
>>> these discussions) is that allowing Text and also allowing values
>>> represented by URL might be the right combination. Schema.org's
>>> enumerations work best for short, rigid, fixed lists that won't evolve
>>> or get extended...
>>>
>>> Dan
>>>
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-- 
Charles McCathie Nevile - Consultant (web standards) CTO Office, Yandex
       chaals@yandex-team.ru         Find more at http://yandex.com

Received on Tuesday, 19 November 2013 11:44:20 UTC