[ckan-discuss] Datacatalog metadata?!

Tue Mar 30 14:46:36 BST 2010

Hi Fadi, good to see your results available!

When working on the RDF generator for data.gov.uk
(http://bitbucket.org/ww/ckanrdf
and particularly http://bitbucket.org/ww/ckanrdf/src/tip/examples) I've
come across
some cases that are almost bbut not quite addresed by your ontology. I'm
thinking
of granularity or resolution. We really need two terms here. There is
spatial resolution
and temporal resolution. Some datasets have one or the other or both...

I'll take a closer look at your RDF rendering and see about
incorporating some of the
ideas into the semantic.ckan.net and data.gov.uk projects.

I wonder if it will be long before the terms in the fundacionctic namespace
will be moved somewhere permanent so that we can use them in data.gov.uk.

Cheers,
-w

On 10-03-30 14:34, Maali, Fadi wrote:
> Hello,
>
> You might find it useful to have a look at "Dcat" overview page:
> http://vocab.deri.ie/dcat-overview
>
> Dcat is an RDF vocabulary for representing government catalogs in RDF
> (work-in-progress).
>
> The page above contains links to the vocabulary specification and a
> sample online RDF data representing a number of catalogs
> (data.gov, data.australia.gov.au, data.london.gov.uk, datasf.org)
> Example datasets:
> http://lab.linkeddata.deri.ie/govcat/page/data.gov/dataset/100
> http://lab.linkeddata.deri.ie/govcat/page/data.australia.gov.au/dataset/
> 101
>
>
>
> Regards,
> Fadi Maali
>
> -----Original Message-----
> From: ckan-discuss-bounces at lists.okfn.org
> [mailto:ckan-discuss-bounces at lists.okfn.org] On Behalf Of Antti Poikola
> Sent: 30 March 2010 14:19
> To: CKAN discuss
> Subject: [ckan-discuss] Datacatalog metadata?!
>
> Hello,
>
> Simple questions from a non-programmer again.
>
> What metadata should be collected as required and as optional from 
> public sector datasets?
>
> I have been chasing this question allready for some time now. Is there 
> any place where the data model/structure of CKAN, semantic CKAN, 
> opengov.se, data.gov.uk, data.gov or any other data catalogs are
> documented?
>
> Best what I've got is this link: 
> http://data.gov.uk/dataset/data_gov_uk-datasets and these points 
> (collected from two emails) from Peter Krantz:
>
> ---CLIP---
>
> Here is an example entry for a dataset expressed  in RDF: 
> http://pastie.org/827944
>
> I have tried to use DC  terms for the basics. The void vocabulary is 
> explicitly for semweb data  and this has to bee more generic (to be able
>
> to provide info about a  published spreadsheet for example). What do you
>
> think?
>
> The next step is to  provide an atom feed where each entry element 
> embeds some of this data  and provides a link element to the rdf: <link 
> rel="alternate"  href="<url-to-rdf-data>" type="application/rdf+xml" />
>
> I have a patch for the  opengov-catalog project ready.
>
> I have implemented the RDF metadata on  opengov.se now. All data is in 
> swedish but you get the idea if you look  at an individual dataset: 
> http://www.opengov.se/data/42/
>
> ...and its RDF  representation (based on dublin core terms): 
> http://www.opengov.se/data/42/rdf/
>
> I have also made sure  an Atom feed contains all datasets (with a link 
> element to the RDF  representations in each entry element) here: 
> http://www.opengov.se/feeds/data/
>
> Please note that the  feed contains datasets that are not (yet) open. 
> Some may have a  commercial license and may not be available on the web.
>
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-- 
William Waites           <william.waites at okfn.org>
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