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Fwd: Fw: Re: RDF and CIDOC CRM

From: martin <martin@ics.forth.gr>
Date: Fri, 28 Jun 2013 21:29:29 +0300
Message-ID: <51CDD609.6030202@ics.forth.gr>
To: public-lod@w3.org, Bernard Vatant <bernard.vatant@mondeca.com>, crm-sig <crm-sig@ics.forth.gr>
Dear Bernard,

As I may not be hard to guess, www.cidoc-crm.org is the home of CIDOC 
CRM, and the source of ISO21127. I am chair of CIDOC CRM-SIG, a working 
group of the International Committee for Documentation of the 
International Council of Museums (ICOM), so I am the right address for 
your message. The copyright of our work is with ICOM.

The redirection from [5] is indeed a feature, and to our best knowledge 
best practice.

If you have can point us to what you expect as the latest 
state-of-the-art of provenance metadata for RDFS files, we would be very 
happy.

All other copies and versions around are not our responsibility, nor can 
we prevent people publishing copies or versions anywhere else.
Sites accepting submissions such as [1] or [2] should to our opinion
at least clarify the provenance of submissions on their initiative.

Best wishes,

Martin


-------- Original Message --------
Subject: 	Fw: Re: RDF and CIDOC CRM
Date: 	Fri, 14 Jun 2013 18:18:25 +0100 (BST)
From: 	Dominic Oldman <do_home@btopenworld.com>
Reply-To: 	doldman@britishmuseum.org
To: 	Martin Doerr <martin@ics.forth.gr>



Fyi

Sent from Yahoo! Mail on Android


------------------------------------------------------------------------
*From: * Bernard Vatant <bernard.vatant@mondeca.com>;
*To: * Linking Open Data <public-lod@w3.org>;
*Subject: * Re: RDF and CIDOC CRM
*Sent: * Fri, Jun 14, 2013 1:26:03 PM

Hi all

I'm a bit lost with all those avatars of CIDOC-CRM ontology published
under various URIs, under various namespaces and confusing redirections

In LOV [1]  we have registered two versions and two different
namespaces, a version 5.01 in OWL [2] and the more recent one 5.04 in
RDFS [3], dereferencing to [6].
The draft mentioned by Kingsley [4] is a more recent version 5.1, the
xml:base it declares is yet another one [5] which actually dereferences
to [6] as [3] does. And the "Erlangen manifestation" [7] mentioned by
Richard is yet another avatar, apparently also of version 5.04.

You are lost already? Imagine the poor linked data publisher wanting to
use the latest, authoritative version of the ontology ...

Since none of those vocabularies in their RDF form expose either clear
provenance metadata, more recent versions do not mention the previous
one(s), you have to look at comments in [4]  :

"This is the encoding approved by CRM-SIG in the meeting 21/11/2012 as
the current version for the CIDOC CRM namespace. Note that this is NOT a
definition of the CIDOC CRM, but an encoding derived from the
authoritative release of the CIDOC CRM v5.1 (draft) May 2013 on
http://www.cidoc-crm.org/official_release_cidoc.html"

And from this html page I understand that indeed the 5.04 version is the
current official one, 5.1 is just a draft, so after all both namespaces
[3] and [5]  redirecting to the current "official" version might be a
feature and not a bug, but the above comment in the draft about "the
current version for the CIDOC CRM namespace" is confusing at least ...

If editors of those various versions are around, could they please step
forward and clarify what should be used as of today as the authoritative
URI and namespace for this important ontology, so that potential users
do not need, beyond mastering RDF technologies, a degree in hermeneutics :)

Thanks for your time

Bernard


[1] http://lov.okfn.org/dataset/lov/details/vocabulary_crm.html
[2] http://purl.org/NET/cidoc-crm/core
[3] http://www.cidoc-crm.org/rdfs/cidoc-crm
[4] http://www.cidoc-crm.org/rdfs/cidoc_crm_v5.1-draft-2013May.rdfs
[5] http://www.cidoc-crm.org/cidoc-crm/
[6] http://www.cidoc-crm.org/rdfs/5.0.4/cidoc-crm.rdf
[7] http://erlangen-crm.org/current/


*Bernard Vatant
*
Vocabularies & Data Engineering
Tel : + 33 (0)9 71 48 84 59
Skype : bernard.vatant
Blog : the wheel and the hub <http://bvatant.blogspot.com>
Linked Open Vocabularies : lov.okfn.org <http://lov.okfn.org>
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Received on Friday, 28 June 2013 18:30:13 UTC

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