JiscMail Logo
Email discussion lists for the UK Education and Research communities

Help for DC-ARCHITECTURE Archives


DC-ARCHITECTURE Archives

DC-ARCHITECTURE Archives


DC-ARCHITECTURE@JISCMAIL.AC.UK


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

DC-ARCHITECTURE Home

DC-ARCHITECTURE Home

DC-ARCHITECTURE  September 2003

DC-ARCHITECTURE September 2003

Options

Subscribe or Unsubscribe

Subscribe or Unsubscribe

Log In

Log In

Get Password

Get Password

Subject:

Re: DCX proposal

From:

Pete Johnston <[log in to unmask]>

Reply-To:

DCMI Architecture Group <[log in to unmask]>

Date:

Fri, 12 Sep 2003 13:36:26 +0100

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (96 lines)

Theo said:

> Attached you find a proposal for a concept named as DCX. This
> proposal can also be found at
> http://krait.kb.nl/coop/tel/DCX_proposal.doc. There has
> already been some discussion on this subject before it was
> decided to send it to this list,  soI copied and pasted the
> most recent messages below, assuming they also cover previous
> parts of the discussion.

As the comments from Tom and Andy note, I think there are two separate
aspects to this, which I think need to be separated out:

(1) a more generic abstract model for a DC metadata record that includes
the use of non-DC-owned terms, and provides a label for instances of
this type of metadata;
(2) mechanisms for improving the disclosure of the semantics of
non-DC-owned terms

I agree with Tom and Andy's comments that the first of these seems to
correspond to what some people have called a "DC Application Profile",
though stopping short of providing a specific label for this entire
class. (I'm not sure how useful it is to have such a generic label.)

For (2), the suggested solution is for DCMI to support the use of a
"catch all" "dcx namespace" that anyone (?) can use as the basis for the
URIs for any (?) of their (non-DC) terms.

I wonder whether this suggestion slightly mixes up two things, or at
least suggests a stronger relationship between then than is actually the
case:

- the "ownership" of a URI; and
- the ability of someone other than the owner to discover information
about the meaning of a metadata term identified by that URI.

I'd argue that it makes no difference whether a term has a URI of
http://purl.org/dc/dcx/myterm or http://dublincore.org/dcx/myterm or
http://purl.org/tel/terms/myterm or
http://www.europeanlibrary.org/terms/myterm as regards my ability to
find out what the term means.

My ability to find information about the meaning of any term
defined/owned by someone else depends on people following shared
social/administrative conventions about disclosing that information,
whether that involves

- the owner/creator of the URI making that URI "dereferenceable" (for
the full "lifetime" of the term) and ensuring that dereferencing it
generates some useful information; and/or

- the owner/creator of the URI "depositing" information about the term
it denotes with a global or community-wide service (e.g. a registry)
that I know about and can access and use (It's no help to me if the
information is registered with a service I don't know about or can't
access)

(If you regard the Web itself as the registry, then maybe the first is
just a special case of the second.)

I just don't think that information about terms with URIs beginning
http://purl.org/dc/dcx is somehow _intrinsically_ more "discoverable"
than information about terms with URIs beginning
http://www.europeanlibrary.org/ or http://myproject.org/. It's the use
of shared procedures and conventions (including considerations about
dereferencing and persistence) that make that information
available/accessible to other people. DCMI has explicitly addressed this
for the URIs it owns/creates in the namespace policy document (which I
think would be better titled a _URI_ policy document, but that's by the
by!) and in DCMI Usage Board implementation of that policy in its
procedures.

To address (2), it seems to me we need

(a) improved understanding of the _responsibilities_ associated with
declaring metadata terms and assigning URIs to them (I don't deny that,
as Andy said in one of his messages, there may be some diffficult issues
in terms of persistence if such URIs are being created in the context of
short-term projects);

(b) shared, consistent practices for the _disclosure_ of information
about those terms and URIs

I don't think either (a) or (b) requires the use of a catch-all "dcx
namespace", and indeed creating a "dcx namespace" for people to use as
the basis of their URIs wouldn't in itself address the problem: it's the
conventions and policies that do that.

In terms of disclosure "services", one practical measure for DCMI to
consider might be whether the DCMI registry (or a DCMI-provided registry
implementation) indexes data for terms from sources other than DCMI
(though I'd suggest there would need to be some control on what was
indexed.)

Pete

Top of Message | Previous Page | Permalink

JiscMail Tools


RSS Feeds and Sharing


Advanced Options


Archives

September 2020
August 2020
July 2020
June 2020
April 2020
March 2020
February 2020
January 2020
December 2019
November 2019
September 2019
August 2019
July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
September 2005
August 2005
July 2005
June 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
March 2004
February 2004
January 2004
November 2003
October 2003
September 2003
August 2003
June 2003
May 2003
April 2003
March 2003
January 2003
December 2002
November 2002
October 2002
September 2002
August 2002
July 2002
June 2002
May 2002
April 2002
March 2002
February 2002
January 2002
December 2001
November 2001
October 2001
September 2001
August 2001
July 2001
June 2001
May 2001
April 2001
March 2001
February 2001
December 2000
November 2000
October 2000


JiscMail is a Jisc service.

View our service policies at https://www.jiscmail.ac.uk/policyandsecurity/ and Jisc's privacy policy at https://www.jisc.ac.uk/website/privacy-notice

For help and support help@jisc.ac.uk

Secured by F-Secure Anti-Virus CataList Email List Search Powered by the LISTSERV Email List Manager