Catalog: dct:issued and dct:modified



To increase interoperability between DCAT-AP and the Spanish Technical Interoperability Standard for the Reuse of Information Resources (NTI), it is proposed to make dct:issued and dct:modified mandatory for Catalog.

See also:






Mon, 22/04/2013 - 19:05

Agreed at meeting 2013-04-17. Included in Draft 2.

Mon, 22/04/2013 - 19:30

Mon, 13/05/2013 - 13:14

Apologies for reopening this issue, but can one explain the rationale behind dct:issued as a mandatory property? 

I agree that it's important to know when the catalog was last modified, especially if a data broker/aggregator is in place, but I do not understand why the release date of the catalog is equally important. I would suggest moving release date (dct:issued) from mandatory to recommended or optional. 

Tue, 14/05/2013 - 14:02

+1 from me.

Tue, 09/07/2013 - 10:21


Release date for Catalog is already recommended which seems to satisfy the proposal.


Proposed resolution    

No change is necessary.


Proposed action  

No change to the specification.


Thu, 01/08/2013 - 12:23

Resolved at meeting 18 July 2013, see report at

No change made.

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