[ECODP-dev] first RDF assesment

[Bert Van Nuffelen]

Hi David,

here is a first assesment of the RDF produced by the current version of the
EU ODP ckan

* [Major] correct publisher URI
  CKAN generates this:
  <dct:publisher><skos:Concept rdf:about="
http://publications.europa.eu/resource/authority/corporate-body/cnect
"/></dct:publisher>

  but the correct URI to use is
http://publications.europa.eu/resource/authority/corporate-body/cnect

  In the po-corporate-bodies.json used to instantiate the right URI is
given:

 {
        "term" : { "type": "uri", "value": "
http://publications.europa.eu/resource/authority/corporate-body/CNECT" },
        "label" : { "type": "literal", "value": "Generaldirektion
Kommunikationsnetze, Inhalte und Technologien" } ,
      "language" : { "type": "literal" , "value" : "da" }
      },


* [Minor] better is to specify this line with the next format in rdf/xml.
Otherwise one additionally declares that the URI is a skos:Concept, which
is (a) redundant, (b) not the task of the transformation.
   <dct:publisher rdf:resource="
http://publications.europa.eu/resource/authority/corporate-body/cnect"/>

* [Major] use the correct URI's for the geospatial coverage domain:
  CKAN generates the same triple:
  <dct:spatial><skos:Concept rdf:about="
http://publications.europa.eu/resource/authority/ntu/h"/></dct:spatial>

  for each country

  e.g. <http://publications.europa.eu/resource/authority/country/WSM>

  present in the json po-countries.json: example extract

{
        "term": { "type": "uri" , "value": "
http://publications.europa.eu/resource/authority/country/ABW" } ,
        "label": { "type": "literal" , "value": "Aruba" } ,
        "language": { "type": "literal" , "value": "fi" }
      } ,



* [Minor] see rdf/xml notation

* [major] Catalog Record
   missing values for
   <dct:modified/>
   <dct:issued/>

* missing translations for the translatable fields (description, title)


* [major] DCAT Catalog Record is not part of the dcat:Dataset but a
separate piece of information

------------------
related topics:

* contact_webpage CKAN field is that supported?
* documentation on how to handle a visualisation item

best regards,

Bert

-- 
Bert Van Nuffelen

Semantic Technologies Software Architect at TenForce
www.tenforce.be

Bert.Van.Nuffelen at tenforce.com
Office: +32 (0)16 31 48 60
Mobile:+32 479 06 24 26
skype: bert.van.nuffelen
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