Re: JSON and Lists

That definitely looks like a better option to me.

Ivan

On 18 Oct 2014, at 03:22 , Robert Sanderson <azaroth42@gmail.com> wrote:

> 
> Dear all,
> 
> The current OA model is less intuitive than it could easily be when it comes to the Multiplicity constructs.  For the FPWD, I think it would be beneficial to make them easier to understand and implement.
> 
> The proposed structure for the oa:Choice is:
> 
>   {
>     "@type": "oa:Choice",
>     "members": ["eg:body1", "eg:body2", "eg:body3"]
>   }
> Where the members are ordered in descending priority.
> (or "items" or other convenient name tbd)
> 
> And the exact same structure for oa:List:
> 
>   {
>     "@type": "oa:List",
>     "members": ["eg:target1", "eg:target2", "eg:target3]
>   }
> Where the members are ordered.
> 
> This looks like something that a developer would create using JSON, when it needed to go into an object (which it does, given the distinction between List and Choice, and that the object of the hasTarget property must be an object) [see Issue 12]
> 
> 
> Conversely, the current structures expose a lot of the RDF plumbing where they shouldn't:
> 
>   {
>    "@type": "oa:Choice",
>    "default": "eg:body1",
>    "item" : ["eg:body3", "eg:body2"]
>   }
> Where item is two separate triples, and thus the order is not deterministic.
> 
> And worse for list:
> 
>   {
>    "@type": ["oa:List", "rdf:List"],
>    "first": "eg:target1",
>    "rest": ["eg:target2", "eg:target3"],
>    "item" : [ "eg:target2", "eg:target1", "eg:target3"]
>   }
> Where, again, the order of the entries in item is not deterministic as they're separate triples.
> 
> 
> Thoughts?  Jacob, please feel free to describe your counter proposal from issue 1 if you'd like :)
> 
> 
> This is related to issues:
>   https://github.com/w3c/web-annotation/issues/1
>   https://github.com/w3c/web-annotation/issues/2
>   https://github.com/w3c/web-annotation/issues/5
>   https://github.com/w3c/web-annotation/issues/12
> 
> -- 
> Rob Sanderson
> Technology Collaboration Facilitator
> Digital Library Systems and Services
> Stanford, CA 94305


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Ivan Herman, W3C 
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