W3C home > Mailing lists > Public > public-schemaorg@w3.org > May 2015

Re: schema.org/WebPageElement and it's subTypes

From: Dan Brickley <danbri@google.com>
Date: Tue, 19 May 2015 19:47:34 +0100
Message-ID: <CAK-qy=6yancHinajMRY_jguaKw6Eg6vrBfSMKO-ABKmCziX2hw@mail.gmail.com>
To: Jarno van Driel <jarnovandriel@gmail.com>
Cc: Jason Douglas <jasondouglas@google.com>, "schema.org Mailing List" <public-schemaorg@w3.org>
On 19 May 2015 at 19:38, Jarno van Driel <jarnovandriel@gmail.com> wrote:
>> "SiteNavigationElement (a subtype of WebPageElement) is widely adopted"
>
>
> So are WPHeader, WPSideBar and WPFooter but is there also any insight into
> how they are used?
>
> I've often seen these elements marked up without any properties specified
> for them, and those that do specify properties often do this in a very
> inconsistent/creative manner, which is probably due to the fact there are no
> examples showing how they should be used.
>
> But before talking about adding examples I'd first like to know whether
> there's any sense in specifying these Types, isn't this indeed mark up for
> markup's sake, or are data consumer actually interested in knowing about a
> page's WebPageElements?
>
>> "Odd to me, though, that BreadCrumbList is not a WebPageElement"

Conceptually, it could naturally enough live in there but it is more
about the site's structure than about a particular piece of markup.
And since no properties are defined especially for WebPageElement I
don't think we're missing out on much. I also don't see a lot of value
in treating a breadcrumb list as a creative work. It's essentially
just a data structure with a particular known kind of content.

I would love to hear of WPFooter etc being used (e.g. for
accessibility). Anyone?

cheers,

Dan

> I'd have to do my best to look up what was said about that in one of the
> many discussions about ItemList but it has to do with ItemList no longer
> being a CreativeWork.
Received on Tuesday, 19 May 2015 18:48:05 UTC

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