- From: Gregg Kellogg <gregg@greggkellogg.net>
- Date: Tue, 20 Nov 2012 16:28:35 -0500
- To: Thomas Baker <tom@tombaker.org>
- CC: "public-rdfa-wg@w3.org" <public-rdfa-wg@w3.org>
ΩOn Nov 20, 2012, at 4:24 PM, Thomas Baker <tom@tombaker.org> wrote: > Dear RDFa WG, > > Currently, the prefixes "dc:" and "dcterms:" are both mapped in the RDFa > Initial Context to the namespace URI http://purl.org/dc/terms/ (here: > "/terms/") [1]. > > It has been pointed out that a considerable amount of data uses, or maps to, > DCMI properties with the namespace URI http://purl.org/dc/elements/1.1/ (here: > "/1.1/"), which in other contexts has traditionally been mapped to the prefix > "dc:". > > Most of the /terms/ properties have ranges restricted to either literal or > non-literal values, while the /1.1/ properties are rangeless (rdfs:Resource by > default) -- a characteristic some users see as an advantage (see [2]). > > DCMI would like to propose to the RDFa Working Group that the prefix "dc11:" be > added to the Initial Context for the /1.1/ namespace URI. +1 Gregg > People who have used "dc:" for /1.1/ properties will need to explicitly declare > this as a prefix. However, for those who continue to use /1.1/ properties -- > in some cases, precisely because they are rangeless -- inclusion in the Initial > Context would emphasize that /1.1/ has not been forgotten or deprecated, > reinforce the message that /1.1/ properties should not be "upgraded" to /terms/ > properties in a mechanical way, and provide a conventional prefix to use for > the properties. > > Many thanks for your consideration, > Tom > > [1] http://www.w3.org/2011/rdfa-context/rdfa-1.1 > [2] http://wiki.dublincore.org/index.php/FAQ/DC_and_DCTERMS_Namespaces > > -- > Tom Baker <tom@tombaker.org> > Dublin Core Metadata Initiative Ltd > >
Received on Tuesday, 20 November 2012 21:29:22 UTC