- From: Marjolein Katsma <webmaster@javawoman.com>
- Date: Sat, 18 Jan 2003 12:01:17 +0100
- To: "daniel-at-veillard.com |rdf/1.0-Allow|" <r24th8s1gq0t@sneakemail.com>
- Cc: www-rdf-interest@w3.org
Hi Daniel, I understand your argument for keeping the metadata in a database; however, even for a database you need a "vocabulary" (in the sense that names for tables and columns form a vocabulary). But Chaals is right: it doesn't matter whether that vocabulary exists in the form of RDF data or an RDF schema - any format (such as a list of terms and their use or semantics as I found on the Fink site) would still be a vocabulary. While this is the first time for me to try to create RDF (and an RDF schema for it) so I'm struggling with RDF concepts and RDF/RDFS syntax at the same time as trying to create a vocabulary for my application, I've worked on XML and XML schema before - which still involves creating a vocabulary and that part of the process is not so different. I've found that when designing a vocabulary it can be very helpful to look at vocabularies (in whatever form) for similar or related subjects: it's not just words used that may be better than the words you'd thought of - it's also that some words signify (or merely suggest) concepts that are helpful to have (even if you end up using different vocabulary for those concepts). So ... I did follow your "go directly to database" (or similarly-worded) link on the rpmfind site but even there I did not see any clue to a vocabulary. Is there a DDL or other schema for your database available somewhere? (Or would this be regarded to constitute a security risk)? Or just a summing up of the terms you use might also be helpful. Thanks, At 23:36 2003-01-15, Daniel Veillard wrote: >On Wed, Jan 15, 2003 at 05:28:28PM -0500, Charles McCathieNevile wrote: >> Hi Marjolein, >> >> Some things trigger my "instant response" mechansims ;-) You could possibly >> find out more about rpmfind from Daniel Veillard, who put it together. If I >> recall correctly he used a draft version of RDF to encode the stuff, but I > > Right, > >> couldn't find a pointer easily on rpmfind.net either. I guess I will have to >> get an RPM system and dig inside it a bit. > > Well, only metadata extracted were using RDF (and an early version) >But I'm using a past tense, because nowadays the metadata are kept in >a database instead of XML/RDF files. Managing 50,000 - 100,000 files >and their relationship was a real nightmare, that didn't scale and was >impossible to keep clean. [snip] -- Marjolein Katsma webmaster@javawoman.com Java Woman - http://javawoman.com/
Received on Sunday, 19 January 2003 07:24:13 UTC