On Mar 2, 2009, at 8:25 AM, Joachim Räth wrote:
Dear all,
are there any precautions to be observed while inserting DC Elements
with qualifiers refined by "subqualifiers" into the Metadata
registry, like for example:
dc.coverage.spatial.lat
dc.coverage.spatial.long
From a metadata convention I would recommend instead using the "Box"
or "Point" encoding scheme for the value here.
http://dublincore.org/documents/dcmi-terms/#ses-Point
http://dublincore.org/documents/dcmi-point/
http://dublincore.org/documents/dcmi-terms/#ses-Box
http://dublincore.org/documents/dcmi-box/
use them in a dc.coverage.spatial qualified field.
dc.coverage.temporal.start
dc.coverage.temporal.end
Likewise, here I would suggest using Period encoding scheme
http://dublincore.org/documents/dcmi-terms/#ses-Period
http://dublincore.org/documents/dcmi-period/
use them in a dc.coverage.temporal qualified field.
Using this approach is more in line with the intended specification
for these fields in DCMI Terms. But I can see that this approach will
make your task of exposing advanced search on those terms more
difficult, DSpace support for Data ranges and spatial areas is in
serious need of enhancement.
Mark
(dc.Element.Qualifier.Subqualifier)
The aim is to enable
a) a linking to OSM geospatial data
b) an advanced search for a given time period.
Thank you for your advice
Joachim
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www.stadtteilgeschichten.net
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