- From: Fadi Maali <fadi.maali@deri.org>
- Date: Fri, 27 Apr 2012 12:11:51 +0100
- To: Alasdair J G Gray <A.Gray@cs.man.ac.uk>
- Cc: public-gld-comments@w3.org, Michael Hausenblas <michael.hausenblas@deri.org>
On 27 Apr 2012, at 12:05, Fadi Maali wrote: > Hi, > > I believe that using them together is beneficial especially when an existing dataset available for example in CSV is converted to RDF. In this scenario I usually describe the resulting RDF dataset in VoiD and the original dataset in DCAT while linking them together using dct:source something like: > :void-dataset dct:source :dcat-dataset. > :dcat-dataset dcat:distribution :dcat-dist. > :dcat-dist dcat:accessURL <url-to-the-csv-file> > > using this representation, the converted RDF representation is linked to its source and therefore can be checked and validated. > For example have a look at: http://vmsgov03.deri.ie:8080/data-cube-searcher/index.html?query=howth%20primary%20schools > notice the link to the original CSV file that is enabled by the link from void to dcat datasets. Sorry, I think I should provide some more details here. This is a search application on top of RDF data (in Data Cube) While the search is done over RDF as a unifying data model, the data is linked to the original CSV file it was transformed from. A user who finds a result doubtful can check the original CSV (the dcat:Distribution) and clarify whether the value is correct or an error introduced during the conversion. > > Hope this helps! > > Regards, > Fadi Maali > > On 27 Apr 2012, at 11:59, Michael Hausenblas wrote: > >> Alasdair, >> >>> Are there plans on combining the specifications? >> >> No, as they target different types of data. DCAT is for describing non-RDF datasets, VoID for RDF datasets. >> >>> Is there a best practice on how to use them together? >> >> DCAT/VoID alignment and best practices are certainly necessary and should/will be done (heads-up: we plan this for an upcoming release of VoID, cf. the long-standing issue on our tracker [1]). >> >> >> Cheers, >> Michael >> >> [1] http://code.google.com/p/void-impl/issues/detail?id=63 >> >> -- >> Dr. Michael Hausenblas, Research Fellow >> DERI - Digital Enterprise Research Institute >> NUIG - National University of Ireland, Galway >> Ireland, Europe >> Tel.: +353 91 495730 >> WebID: http://sw-app.org/mic.xhtml#i >> >> On 24 Apr 2012, at 18:20, Alasdair J G Gray wrote: >> >>> Hi, >>> >>> I have been looking at DCAT and VoID for describing datasets. There seems to be a large amount of overlap between the two specifications. Are there plans on combining the specifications? Is there a best practice on how to use them together? >>> >>> Alasdair >>> >>> Dr Alasdair J G Gray >>> Research Associate >>> Alasdair.Gray@manchester.ac..uk >>> +44 161 275 0145 >>> >>> Room 1.17 >>> Kilburn Building >>> School of Computer Science >>> University of Manchester >>> Oxford Road >>> Manchester >>> M13 9PL, UK >>> >>> Please consider the environment before printing this email. >>> >> >> > >
Received on Friday, 27 April 2012 11:12:23 UTC