Sorry Scott, I'm not sure I understand you. I think what you suggest
could only apply to discovering the source of the vocabulary that was
being used. I don't see how the keywords that had been selected as
applicable to a given resource could be discovered like this. Am I right
in thinking that what you mean is "Instead of somehow including the
SOURCE OF THE vocabulary terms directly ..."?
Assuming I'm right, you're still stuck with the problem that a catalogue
(or even an individual record) might contain keywords from several
controlled sources. Consider EEVL, they catalogue Engineering, Maths and
computing resources, they use different subject-specific controlled
vocabularies for each subject (let's assume these are keywords rather
than classification--even though that's not quite how they are using
them). So a single record about a resource on maths for engineers will
get a key words from the Engineering and Mathematics vocabularies. Will
what you describe below be able to say which term comes from each
source? (And would it matter if it couldn't?)
Still, sounds better than nothing. Thanks for the suggestion.
All the best, Phil.
Scott Wilson wrote:
> Hi gang,
>
> Instead of somehow including the vocabulary terms directly within the
> (ever expanding) metadata record, why not use z39.50/SRW/SRU operations
> to dynamically discover this information from the target when searching?
> e.g.. Scan(fieldname): for terms in current use for a particular field,
> as a list of tokens in XML
>
> Explain() doesn't seem to return the right sort of things in the Zeerex
> record for discovering controlled vocabularies, although I'm no expert
> (but I'm CCing one :-)
>
> Alternatively, this information could be provided in a service registry
> (e.g. the IESR) or metadata schema registry (e.g. IEMSR).
>
> Just an idea :-)
>
> - S
>
> On 24 Feb 2005, at 02:38, Sarah Currier wrote:
>
>> Hi Phil,
>>
>> Phil Barker wrote:
>>
>>> Just want to be clear what you're suggesting for UK LOM Core / IMS Best
>>> Practice Guide
>>
>>
>> Cool.
>>
>>> Sarah Currier wrote:
>>>
>>>> 1. There are two things: keyword indexing, and classification. They are
>>>> different, serve different functions, and are both important.
>>>>
>>> ...
>>>
>>>> 3. ... Where keyword
>>>> indexing does involve a publicly available controlled vocabulary (as
>>>> opposed to an internal authority list as HLSI use) I think it would be
>>>> sensible to make this clear in the metadata as with other vocabularies
>>>> in the LOM.
>>>
>>>
>>> Bit difficult to "make this clear in the metadata as with other
>>> vocabularies in the LOM" if you're using either of the keyword elements
>>> since they have langString rather than vocabulary datatype, so you can't
>>> put in source-value pairs. Are you suggesting using the taxonPath
>>> element in the classification category? or does this conflict with your
>>> first point?
>>
>>
>>
>> The last bit about TaxonPath DOES conflict with my first point. In
>> typical librarian fashion I didn't really get the technical ins and
>> outs so it sounds like what you are saying is that it's not
>> technically possible to declare the vocabulary of keywords within the
>> LOM as it currently stands because of the different datatype.
>> Therefore it will only be possible for someone to use a published
>> controlled vocabulary, but not to declare it (although they could name
>> it in their AP which they should make publicly available). So I guess
>> if we're only looking at what the LOM Core / Best Practice Guide can
>> say about this, I would suggest that they just make this point clear.
>>
>>>> I wonder if there is some way of also making this clear in the IMS
>>>> Metadata Best Practice Guide?
>>>>
>>> I'll see whether we can look into that when moving from 1.3 Public Draft
>>> to Final.
>>
>>
>> Cheers! :-)
>>
>> Sarah
>>
>> --
>> *******************************************
>> Ms. Sarah Currier
>> Librarian, Stòr Cùram Project
>> "A Storehouse of Learning Resources for Social Care"
>> Dept. of Social Work, University of Strathclyde
>> c/o: Centre for Academic Practice, University of Strathclyde
>> Graham Hills Building, 50 George Street
>> Glasgow G1 1QE, Scotland, United Kingdom
>> Web: http://www.storcuram.ac.uk/
>> Tel.: +44 (0)141 548 4573 Fax: +44 (0)141 553 2053
>> E-mail: [log in to unmask] Mob.: +44 (0)7980 855 801
>> Stòr Cùram is Gaelic for Storehouse of Care
>> *******************************************
--
Phil Barker Learning Technology Adviser
ICBL, School of Mathematical and Computer Sciences
Mountbatten Building, Heriot-Watt University,
Edinburgh, EH14 4AS
Tel: 0131 451 3278 Fax: 0131 451 3327
Web: http://www.icbl.hw.ac.uk/~philb/
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