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Re: Why is the video property bound to creative work?

From: <martin.hepp@ebusiness-unibw.org>
Date: Tue, 8 Apr 2014 14:20:07 +0200
Cc: W3C Web Schemas Task Force <public-vocabs@w3.org>
Message-Id: <3C2978F5-45D0-4749-86E0-F67F1DA8E182@ebusiness-unibw.org>
To: Jarno van Driel <jarno@quantumspork.nl>
Conceptually, this is not true, since you can use itemref in Microdata or a unique identifier in RDFa to make the video the outer entitity in the nesting.
However, search engines have, in practice, two problems with this:

1. Rich snippets and similar techniques often depend on finding one main entity type, and use the outermost entities (root entities) in the syntax for that task. So a Web page with a VideoObject and an Offer nested therein may not trigger a product snippet because the search engine thinks it was mainly a page about a video.

2. The linkage between entities on the basis of identifiers in RDFa is, to my experience, not properly supported by major search engines, so in reality, my proposed pattern will only work in Microdata.

Martin



On 08 Apr 2014, at 13:01, Jarno van Driel <jarno@quantumspork.nl> wrote:

> But of course you can also model it the other way round...
> 
> True but only in cases where VideoObject is the main object. When the main object is something else, which isn't part of the CreativeWork branch, then there is no way to link a video by means of a 'video' property.
> 
> 
> On Tue, Apr 8, 2014 at 10:33 AM, martin.hepp@ebusiness-unibw.org <martin.hepp@ebusiness-unibw.org> wrote:
> In general, I am supportive of this, since any entity could "have" a video.
> 
> But of course you can also model it the other way round:
> 
> http://schema.org/VideoObject
>  ---> about --> Thing
> 
> This works as of now. The main problem with the current solution is that search engines seem to have a hard time honoring information in that structure. And since we have the property "image" at the level of http://schema.org/Thing, why not promote video thereto, too?
> 
> 
> Martin
> 
> 
> On 08 Apr 2014, at 04:11, Jarno van Driel <jarno@quantumspork.nl> wrote:
> 
> > When working on markup for a MedicalProcedure I ran into the issue of not having the 'video' property available to link an embedded video, explaining the MedicalProcedure, to the entity.
> >
> > But while looking for a solution in the full list of types at schema.org I started to wonder, wouldn't the 'video' property be usefull on plenty of more types than just CreativeWork. For example a 'video' about a person, organization, product, service or MedicalProcedure is quite common, yet there's no way to link a video to any of those types.
> >
> > Of course the workaround for this would be an multi-type entity as in "Product CreativeWork" but somehow that just feels wrong. Looking at how much embedded video is used, wouldn't it be better if the 'video' property moved up the chain and became part of 'Thing'?
> 
> 
Received on Tuesday, 8 April 2014 12:20:50 UTC

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