Dublin Core
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Dublin Core (AKA Dublin Core Schema or just DC) is an old set of vocabulary that was used in meta tags for terms like date, subject, author of a page that has few if any IndieWeb publishing examples beyond Known support, and has no known non-trivial consuming code or services for web pages.
Dublin Core metadata uses a "DC:" prefix inside the meta tag name attribute.
IndieWeb Examples
Other than Known websites publishing Dublin Core meta tags, there are known no examples of #indieWeb sites prominently publishing or any that use or consume the vocabulary for any actual purpose.
Other Examples
- Hypothesis has a tiny bit of obscure Dublin Core document identity vocabulary consuming support when parsing documents per https://web.hypothes.is/help/how-hypothesis-interacts-with-document-metadata/
When Hypothesis sees the combination of dc.identifier and dc.relation.ispartof it joins the values of the two tags to create a URL-independent identifier.
Criticism
Too ambiguous
Dublin Core does not unambiguously identify important document aspects.
Use Dublin Core tags (e.g., DC.title) as a last resort - they work poorly for journal papers because Dublin Core doesn't have unambiguous fields for journal title, volume, issue, and page numbers.Google Scholar Inclusion Guidelines
Lack of consuming code for HTML
- Citation for lack of HTML consuming of DC (note authority) https://twitter.com/paulwalk/status/1093110979406237697
- "(disclaimer: I manage DCMI): Good question :-) There is evidence of DCMI Terms being used in Linked Data in other contexts, but not aware of research into consumption of DC in context of being embedded in webpages. [1/2]" @paulwalk February 6, 2019
DRY violation
- Due to the paucity of consumers including Dublin Core meta tags typically duplicates visible information and thus violates the principles of DRY.
See Also
- https://en.wikipedia.org/wiki/Dublin_Core
- http://dublincore.org/
- https://twitter.com/t/status/91419853256273920
- "OH: "What do you think about Dublin Core?" "I don't know what you're talking about - is that a rock band?" (ttk.me/t4Cp1)" @t July 14, 2011
- Criticism: specs are themselves inconsistent and make poor use of prior work: 2015-03-20 Dublin Core Application Profiles β A Brief Dialogue