ISSUE-8: add a property to distinguish direct and indirect access of dcat:Distribution

(in)direct data access

add a property to distinguish direct and indirect access of dcat:Distribution

State:
CLOSED
Product:
DCAT
Raised by:
Fadi Maali
Opened on:
2012-01-26
Description:
Raised by Martin Alvarez Espinar

I would like to point out the need of an additional property for the dcat:Distribution class. It would be used to indicate if the access to data refereed by dcat:accessURL is either 'direct' or 'indirect'. We discussed it time ago, but we didn't modify the draft on the wiki.

Some examples:
-> Direct: accessURL points to a WebService, RSS, XLS, or XML, which
offers the distribution directly.
-> Indirect: accessURL points to a REST WebService or API
documentation (how to use it, parameters, etc) | an XML zipped

We have solved this issue using the property dcterms:type and a couple of concepts (indirect-access, direct-access) to set type of each distribution.

[] a dcat:Distribution ;
dcat:accessURL "http://.../file.xml"^^xsd:anyURI ;
dcterms:type <http://purl.org/ctic/dcat#accessMode-direct> ;
...

[] a dcat:Distribution ;
dcat:accessURL "http://.../file.zip"^^xsd:anyURI ;
dcterms:type <http://purl.org/ctic/dcat#accessMode-indirect> ;
...
Related Actions Items:
No related actions
Related emails:
  1. [dcat] Distribution re-design proposal (from fadi.maali@deri.org on 2013-02-14)
  2. [dcat] Minutes of 2013-01-31 DCAT task force call (from richard@cyganiak.de on 2013-01-31)
  3. Fwd: [datacatalogs] Update re DCAT and catalog spec (from richard@cyganiak.de on 2012-10-26)
  4. Re: issues related to DCAT (from fadi.maali@deri.org on 2012-10-24)
  5. Re: issues related to DCAT (from richard@cyganiak.de on 2012-09-27)
  6. Re: issues related to DCAT (from auguste.atemezing@eurecom.fr on 2012-09-25)
  7. Re: issues related to DCAT (from bhyland@3roundstones.com on 2012-09-25)
  8. Re: issues related to DCAT (from dave.e.reynolds@gmail.com on 2012-09-25)
  9. issues related to DCAT (from fadi.maali@deri.org on 2012-09-25)
  10. Re: Invitation to revisit eGov-generated DCAT issues (from olyerickson@gmail.com on 2012-03-22)
  11. Invitation to revisit eGov-generated DCAT issues (from olyerickson@gmail.com on 2012-03-22)
  12. Re: DCAT - issues related to dcat:Distribution (from mlvarez@w3.org on 2012-03-22)
  13. Re: DCAT - issues related to dcat:Distribution (from auguste.atemezing@eurecom.fr on 2012-03-22)
  14. Re: DCAT - issues related to dcat:Distribution (from olyerickson@gmail.com on 2012-03-22)
  15. DCAT - issues related to dcat:Distribution (from fadi.maali@deri.org on 2012-03-22)
  16. ISSUE-8 ((in)direct data access): add a property to distinguish direct and indirect access of dcat:Distribution (from sysbot+tracker@w3.org on 2012-01-26)

Related notes:

in http://wiki.okfn.org/OpenDataCatalogues/2#Proposed_Harvest_Mechanism#Changes_to_DCAT_to_support_the_catalog_model
the suggested solution is to add the property dcat:directURL so that a distribution has two properties (accessURL and directURL) with the same value if and only if we it's a direct download/endpoint URL

Fadi Maali, 26 Jan 2012, 10:54:21

discussed 27/9/12 and moved to OPEN

Phil Archer, 27 Sep 2012, 14:52:16

Work in progress on a proposal: http://www.w3.org/2011/gld/wiki/Data_Catalog_Vocabulary/AccessURLRedesign

Richard Cyganiak, 31 Jan 2013, 19:19:32

[28 Feb] I don't see any problems with Fadi's proposal at: http://www.w3.org/2011/gld/wiki/Data_Catalog_Vocabulary/AccessURLRedesign

John Erickson, 28 Feb 2013, 15:31:02

+1 to Fadi's proposal (http://www.w3.org/2011/gld/wiki/Data_Catalog_Vocabulary/AccessURLRedesign). Compatible with existing catalogs and easy to distinguish between landing pages and data access.

Martín Álvarez, 28 Feb 2013, 15:41:55

This was resolved in the extra meeting on 8 March
http://www.w3.org/2013/03/08-gld-minutes.html

Phil Archer, 8 Mar 2013, 12:00:17

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