Re: Revised SKOS-based translation table proposal

On Nov 15, 2011, at 13:02 , Richard Cyganiak wrote:

> Regarding ISSUE-72 “Bring back R2RML lookup tables” [1], here's a new proposal:
> 
>   http://www.w3.org/2001/sw/rdb2rdf/drafts/translation-tables-DERI2.html
> 
> It is still SKOS-based like the first proposal [2], but drops the possibility of using skos:xxxMatch properties, and retains only the ability to use skos:notation, as suggested by David [3].
> 
> This makes it simpler than the Oracle proposal [4] in terms of new properties introduced and total triples needed to express a translation table. Since Souri's and Seema's objection to the original proposal [2] was about its complexity [5], I'm confident that the revised proposal is acceptable to them.
> 
> (The new proposal retains the ability to express non-bijective mappings, and is limited to mapping to IRIs. This differs from the Oracle proposal, which can only express bijective mappings, but can also map to literals.)
> 
> Ivan noted [6] that re-adding this feature would require a second last call.
> 

What I said was:

[[[
The point is that, according to [1], some in the Working Group consider that solution, while maybe viable, requiring a significant amount of technical work to fold it into the spec properly. Has this opinion (ie, Oracle's opinion) changed in this respect? Is it now considered as a trivial technical add-on to the current document? Is there a need for a thorough investigation on the technical consequences? If not, do we have that documented, ie, that this solution properly works? Because if the opinion still is that there is a serious technical work ahead on this then, well, that is a second Last Call indeed.
]]]

if the group considers this version as a very simple, technically obvious solution, then we may get by the last call hurdle.

Ivan


> Best,
> Richard
> 
> 
> [1] http://www.w3.org/2001/sw/rdb2rdf/track/issues/72
> [2] http://www.w3.org/2001/sw/rdb2rdf/drafts/translation-tables-DERI.html
> [3] http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2011Aug/0186.html
> [4] http://www.w3.org/2001/sw/rdb2rdf/drafts/translation-tables-Oracle.html
> [5] http://www.w3.org/2001/sw/rdb2rdf/track/issues/66
> [6] http://lists.w3.org/Archives/Public/public-rdb2rdf-wg/2011Nov/0013.html


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Ivan Herman, W3C Semantic Web Activity Lead
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Received on Tuesday, 15 November 2011 15:10:59 UTC