Thanks a lot for all your feedback. I would appreciate it
greatly, if in the long term a more accurate solution could be developed.
We also thought about solutions based on ID. However, we
tried to avoid this in our data because it may create a maintenance nightmare:
We import millions records from different sources, and would have to ensure
uniqueness of IDs in each and every possible collection of records (within a
single XML document) we may create someday.
Fine to learn that we avoided “Financial
crisis--Finanzmarktkrise” by coincidence ...
Thanks again - Joachim
Using xlink:href as you describe is considered the
proper way in MODS to reference an authority. A related example is in the MARC
21 to MODS mapping (http://www.loc.gov/standards/mods/mods-mapping.html),
which shows that subfield 0 (zero) in MARC 21 is equivalent to use of the
xlink attribute in MODS.
However, xlink can be used in a MODS record
for a variety of external linking purposes, some of them having nothing to do
with authority records or authority URIs. That seems to me to present problems
for processing a MODS record. I wonder if MODS users will find they want a
more specific attribute defined that can only contain an authority URI. So,
I'm not convinced that use of xlink is the best practice in the long term for
encoding a link to an authority URI. I will raise this issue with the
MODS/MADS Editorial Committee.
Arizona State University
On Thu, Feb 19, 2009 at 1:51 AM, Neubert Joachim <[log in to unmask]>
We are mapping data to MODS
record structures (from a PICA library system via Marc21 interface) . This
includes various kind of authority data, eg. subjects, persons etc. For
subjects, the authority data is in SKOS. (Thesaurus for Economics, preview
on http://www.zbw.eu/beta/stw). It is based on concepts
with an URI as persistent identifier. The concepts have prefered labels in
German and English, which should be present in the MODS records for display
and indexing convenience.
What we figured out as a
possible solution is this:
(We don't really like the
de-normalized form. Much better would be:
<topic lang="en">Financial crisis</topic>
However, that's invalid in MODS
What do you think - is it ok
to use xlink:href for the reference to the authority
Since we are new in the MODS
field, we wonder if there is are other solutions or best practices for this
we may not be aware of.
German National Library of Economics