David Bearman wrote:
>
> It is not clear why what you are calling formats, which I think are data
> validation rules, are relevant to resource discovery, though they clearly
> are important metadata for subsequent phases of the research process when
> the retrieved data is to be collated with other information.
Two examples of formats: date formats (eg ISO 8601) and name formats (eg
AACR2). If we don't know how to interpret the string, we are hampered when
doing resource discovery.
> At the same
> time, the concept you are calling controlled vocabularies which consists of
> terminology on the one hand and classification systems on the other, is
> something more than a set of allowable data values, it reflects a world
> view. It is because the scheme reflects a worldview that we would want to
> discover resources with a limit set to those which have that worldview.
> I can't see any reason why measurement units per se are a scheme in this
> sense, though the use of particular schemes in the sense of
> classification/terminology to control values of measurement units reflects
> definite disciplinary constructs that could be important to retrieval (time
> measured in geological periods, space measured in astronomical units,
> weight measured in atomic weights).
As I understand the argument, all schemes are (from a DC point of view)
additional information which, if understood and used, may greatly improve
resource discovery. If not understood, they may be ignored, resulting in
a greater or lesser degradation in the resource discovery process.
Right?
---------------------------------------------------------------------------
Misha Wolf Email: [log in to unmask] 85 Fleet Street
Standards Manager Voice: +44 171 542 6722 London EC4P 4AJ
Reuters Limited Fax : +44 171 542 8314 UK
---------------------------------------------------------------------------
12th International Unicode Conference, 8-9 Apr 1998, Tokyo, www.unicode.org
7th World Wide Web Conference, 14-18 Apr 1998, Brisbane, www7.conf.au
------------------------------------------------------------------------
Any views expressed in this message are those of the individual sender,
except where the sender specifically states them to be the views of
Reuters Ltd.
|