AW: How to use notations from classification schemes in SKOS

In litteris suis de Montag, 13. Februar 2006 14:45, Danny Ayers
<mailto:danny.ayers@gmail.com> scripsit:

> On 2/13/06, Svensson, Lars <svensson@dbf.ddb.de> wrote:
> 
>> Classification schemes like the Universal Decimal Classification,
>> MCS, or PACS usually have two human-readable labels: One containing a
>> notation (usually a combination of digits and letters following a
>> specific syntax, so that it's possible to see super-/subclass
>> relationships and ideally to identify precoordinated notations), the
>> other one being kind of free-format text only. Both labels are
>> intended for human use.
> 
> For the (potentially) machine-readable label the info: URI scheme may
> offer a possible approach.
> 
> http://info-uri.info
> 
> It seems to me that mapping between the relationship definitions and a
> SKOS representation would have to be per-scheme, so it might make
> sense to keep the mapping separate from the naming. With info: you
> could assign (SKOS-opaque) URIs to the terms, then label & describe
> relationships using SKOS (the whole lot could perhaps be generated on
> the fly programmatically based on the existing sheme, but from the
> RDF/OWL viewpoint it'd all be declarative).
> 
Errr, well yes. Maybe my quest wasn't quite clear. What I need is not
any kind of identifier, but a label. An example: the class 025.43 in the
Dewey Decimal Classification has the caption "General classification
systems". I want to express "General classification systems" AND
"025.43" as human-readable labels. Something like

[ns declarations omitted]
ddc:025.43 rdfs:type skos:Concept ;
	skos:prefLabel "General classification systems"@en ;
	skos:notation "025.43" .

Of course the notation is implicit from the identifier, but don't we
need something explicit, too, even if it's in a way redundant?

Lars

-- 
Dr. Lars G. Svensson
Die Deutsche Bibliothek
Informationstechnik / Projekt DDC-Deutsch
Tel.: 069 / 1525 - 1752
http://www.ddc-deutsch.de

Received on Monday, 13 February 2006 14:37:17 UTC