On image metadata standards:
We have found that it is rare that a single image metadata standard will
suit all images across the board. To address this we have an extendable
schema:
1) Core technical metadata: file size, height, resolution, etc. Most of
this should be obtained automatically from the image itself.
2) Extendable metadata: a secondary set of metadata designed to suit the
dataset, usually heavily customised, but will always include information
like photographer, subject, description, etc.
3) Metadata tags: these are customisable metadata tags with the format
"label = value", not unlike a web page URL meta tag. The idea here is
that users can, if they wish, add additional descriptive elements that are
not part of the core dataset. It's usually a good idea to have a degree
of admin control over this feature.
These three approaches to metadata design architecture, in various
combinations, seem to cover the range of heritage applications pretty
successfully. We find that when you use something like DC as a raw data
schema, you can really take the edge off your data, even while you make it
more accessible. Use your own metadata schema, them map it onto a several
standards, including (of course) the Conceptual Reference Model.
Hope that helps,
TB
--
Dr Tyler Bell
Technical Director
Oxford ArchDigital Ltd.
http://oxarchdigital.com
On Thu, 12 Feb 2004 15:45:14 -0000, Lee, Edmund
<[log in to unmask]> wrote:
> Hello Tim,
>
> I've been looking at the same issue myself recently. The impression I
> get is
> that the standards for digital image description fall broadly into two:
> those to do with helping the end user with retrieval (which suggests
> something fairly straightforward, perhaps Dublin Core based, or following
> the MIDAS 'Resources' Information scheme) and those to do with the
> technical
> formats, resolution, file formats etc (which suggest something more
> complex).
>
> I 'd recommend looking through the TASI website, in particular
> http://www.tasi.ac.uk/advice/delivering/metadata.html
>
> Edmund
> Data Standards Unit
> English Heritage
>
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