Re: some comments on the DWBP draft

Hi Erik,

Last Friday, during the meeting of the DWBP working group, we discussed
some of your comments about linking data resources. However, we still don't
have a "concrete" proposal of how to show this as part of the BP. Could you
please give some examples of how to link data resources identified by URIs
using hypermedia ?

Thank you!
Bernadette



2015-08-05 20:05 GMT-03:00 Erik Wilde <dret@berkeley.edu>:

> hello bernadette.
>
> On 2015-08-05 15:07 , Bernadette Farias Lóscio wrote:
>
>> - Say something about the use of HTTP conneg or different URIs for
>> different resource representations. This is gonna be addressed by data
>> formats BP or data access BP.
>>
>
> very good. the REST community never got to a preferred way how to deal
> with this: some prefer HTTP conneg, some prefer different URIs. it would be
> fine to simply mention those possibilities (and maybe their pros/cons)
> without necessarily promoting one.
>
> - Discuss fragment identification (keeping this identification robust
>> across different representations). For this, we need to discuss the
>> concept of resource fragmentation. Could you please indicate some
>> references about this?
>>
>
> https://tools.ietf.org/html/rfc3986#section-3.5 is where they are
> defined. the gotcha is that their interpretation depends on the media type,
> so for example for XML, http://www.w3.org/TR/xml-id/ is how
> https://tools.ietf.org/html/rfc7303#section-5 defines them (well, it's
> actually XPointer but i'll spare you the details).
>
> - Discuss the creation of links between resources.  IMO, in order to
>> discuss the creation of links between data resources we need to discuss
>> the principles of linked data and the use of RDF. Do you agree with this
>> proposal or would you like to propose another way of defining links
>> between data resources?
>>
>
> i disagree. linking data is a part of web architecture (the HATEOAS in
> REST) and independent of specific technologies such as RDF. since most
> people interpret the term "linked data" as implying RDF, it is too specific
> for this discussion. my proposal was to start with hypermedia as a concept,
> and take it from there.
>
> even if you want to mention RDF, then it would be a bad example because it
> is not hypermedia. it is a graph data model that needs additional layers
> (like the ones i pointed to in earlier emails) so that it can be used as
> hypermedia.
>
> my proposal is to start with these simple principles, because they are
> just about how to be webby, without prescribing a technology for it:
>
> https://github.com/dret/webdata (the key point is the fourth star)
>
> kind regards,
>
>
> dret.
>
> --
> erik wilde | mailto:dret@berkeley.edu  -  tel:+1-510-2061079 |
>            | UC Berkeley  -  School of Information (ISchool) |
>            | http://dret.net/netdret http://twitter.com/dret |
>



-- 
Bernadette Farias Lóscio
Centro de Informática
Universidade Federal de Pernambuco - UFPE, Brazil
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