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Re: ItemList proposal

From: Jarno van Driel <jarnovandriel@gmail.com>
Date: Fri, 12 Sep 2014 20:52:52 +0200
Message-ID: <CADK2AU28SPVEK1fMxighh2X6Cb7syb8v9AsFu3rDTAmGFoYS+g@mail.gmail.com>
To: Vicki Tardif Holland <vtardif@google.com>
Cc: Martin Hepp <martin.hepp@unibw.de>, Peter Mika <pmika@yahoo-inc.com>, "Jason Johnson (BING)" <jasjoh@microsoft.com>, PublicVocabs <public-vocabs@w3.org>
"I think it's useful to have a way to explicitly indicate the end of the
list. Information on the Web may be lost or corrupted in all kinds of ways,
so we can't always rely on the fact that missing information is
significative."

Although it may seem nice to be able to express there is no previousItem
(start) or nextItem (end) I wonder if it actually will be used. Both HTML4
and 5 have those attributes as well but in all honesty I never encounter
them. Rel="next/prev" sure but only because Google recommends it for
pagination but there's no mention for using rel="start/last/end", and yet
they do seem to be able to understand a series of documents.

Now imagine the majority of webmasters don't use 'False' does that then
mean parsers/reasoners don't understand where a list starts or ends?
Somehow I doubt that. So personally I'm not convinced there's much to be
gained by adding specifying a False, simply because I don't see
webmasters/devs deploying it.





2014-09-12 19:17 GMT+02:00 Vicki Tardif Holland <vtardif@google.com>:

> schema:False works for me.
>
> - Vicki
>
> Vicki Tardif Holland | Ontologist | vtardif@google.com
>
>
> On Fri, Sep 12, 2014 at 1:12 PM, Martin Hepp <martin.hepp@unibw.de> wrote:
>
>> What about simply using schema:False, which exists? Otherwise I suggest a
>> new, generic element schema:Null, which we will need in future DB-related
>> use-cases anyway.
>> Martin
>>
>> ---------------------------------------
>> martin hepp
>> www:  http://www.heppnetz.de/
>> email: mhepp@computer.org
>>
>>
>> On 12.09.2014, at 18:58, Vicki Tardif Holland <vtardif@google.com> wrote:
>>
>>
>> On Fri, Sep 12, 2014 at 10:07 AM, Peter Mika <pmika@yahoo-inc.com> wrote:
>>
>>> think it's useful to have a way to explicitly indicate the end of the
>>> list. Information on the Web may be lost or corrupted in all kinds of ways,
>>> so we can't always rely on the fact that missing information is
>>> significative
>>
>>
>> In that case, I would suggest a special value like
>> http://schema.org/ItemListEnd so authors don't have to create a Thing
>> just to say it is NULL.
>>
>> - Vicki
>>
>>
>> Vicki Tardif Holland | Ontologist | vtardif@google.com
>>
>>
>>
>
Received on Friday, 12 September 2014 18:53:22 UTC

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