- From: Gannon Dick <gannon_dick@yahoo.com>
- Date: Wed, 23 Jun 2010 10:28:14 -0700 (PDT)
- To: eGov IG <public-egov-ig@w3.org>
> --- On Wed, 6/23/10, Martin Alvarez-Espinar <martin.alvarez@fundacionctic.org> > wrote: > > > > * Property 'Frequency' [1] needs to have a > 'dct:Collection' > > as Domain. So, a Catalog must be a 'dct:Collection' as > well. > > (I've modified this on the wiki). > > This has bothered me for a while. I think yours is > the right solution for Frequency, but the DCMI might help > things a bit if they defined a 'Channel' Element (one > frequency) in DCAM as they do dct:Agent and dct:AgentClass. > > > * Property 'Temporal Coverage' [2] could have literal > > values, typed as xsd:duration (based on the ISO 8601 > > standard)? Defined as 'PnYn MnDTnH nMnS'. > > This is philosophically related to the above. A Frequency > Spectrum [or Duration] and a Collection of Properties is > distinction which means more to an Engineer than a Wordsmith > :) There are some very nicely done (free) applets to > explore the workings of the Fourier Transform available. > > > * Property 'keyword/tag' [3] should not restrict its > range > > to 'Literal'. Some tags might be added as a Resource. > For > > instance, Faviki [4] uses semantic tags. Other example > might > > use tags from a controlled vocabulary in SKOS. > > The DCMI famously does not have a 'keyword' element because > the dct:subject Element should have a 'type' context > associated, at least implicitly. I agree that the > range on dct:subject should not be restricted. > However, one needs to realize that the actual synonyms at > play are: subject/text, keyword/text and tag/text, > otherwise, meta data and semantics can be very > uncooperative. > > --Gannon
Received on Wednesday, 23 June 2010 17:28:47 UTC