I have a different perspective on the relationship of DC to AACR2 and to MARC.
The use of AACR2 in combination with MARC is a relatively mature and rich set
of standards that must evolve slowly because of its huge base of users and its
complexity. DC is relatively new, has a small user base and is developing
rapidly. However one defines the relationship between DC and AACR2/MARC (I am
lumping them together here not because they necessarily go together but because
catalogers who use AACR2 tend to use it with the MARC data structure.) existing
in the the last months of 2000, one should expect that relationship to evolve
relatively rapidly.
DC has the potential of incorporating many important elements of AACR2
cataloging. Take the rules for name entry, for example. This is an AACR2
cataloging standard that could be incorporated into DC usage, and it seems
reasonable to expect that it will be when the DC RDF/XML implementation tools
are developed to support the importation of schema into DC. And there are many
other schema used in conjunction with AACR2/MARC cataloging that could be
incorporated into DC such as standard numbers, various subject thesauri and
classification schema. I can even imagine the ISBD being incorporated into DC
for use with printed material. As DC-Library evolves and as software tools
designed for production use of DC are developed and enhanced, many
metadata/cataloging relationships will change. I predict that DC evolution
will eventually affect the relationship between AACR2 and MARC, and I think it
will also affect the evolution of AACR2 itself.
"Bigwood, David" wrote:
> > Daniel,
> >
> I believe DC was concieved as a method to aid in resource and discovery on
> the Web. It would be a method for publishers of information to mark up
> their text to give a better indication of the place of the document in the
> knowledge environment. I've always imagined it to be much like the title
> page of a book, something which gives essential information in a relativly
> standard manner (But this is only my own idea).
>
> DC was never indended as a replacement for MARC and AACR2. These standards
> are much richer and exacting. Goreman has put forward the idea that there
> would be levels of access to Web informaiton. The most important and best
> sites receiving full cataloging, the next DC, and the lowest are left to
> search engines. I feel this is a good solution and reasonable. Take a look
> at the papers at: http://lcweb.loc.gov/catdir/bibcontrol/whatsnew.html for a
> good introduction to the questions surrounding the topic.
>
> DC and MARC have been mapped to each other,
> http://lcweb.loc.gov/marc/dccross.html. There is a substantial loss of
> information going from MARC/AACR2 to DC. The MARC record resulting from DC
> lacks the fullness and richness of a record done to AACR2 standards. It
> does provide a skeltion of a record which a cataloger can enhance and so
> saves some typeing and prevents typos. Or if the resource is not deserving
> of full cataloging it could be left as is. OCLC has a suite of tools called
> CORC (Cooperative Online Resource Catalog at:
> http://www.oclc.org/oclc/corc/index.htm It allows DC and MARC entry and
> export in either format. Well worth a look.
>
> Sincerely,
> David Bigwood
> [log in to unmask]
> Lunar & Planetary Institute
>
> > ----------
> > From: Daniel Angel[SMTP:[log in to unmask]]
> > Reply To: [log in to unmask]
> > Sent: Thursday, November 02, 2000 10:21 AM
> > To: [log in to unmask]
> > Subject: DC and MARC
> >
> > I'm a recent addition to the librarian's group and was
> > fortunate enough to attend DC8 in Ottawa. Although
> > I've worked with Dublin Core elements over the past
> > few years I'm only now taking a serious look at its
> > use in relation to MARC (most of my effort has been
> > towards search return and schema design). I'm
> > attempting to bring myself up to speed on the various
> > issues related to this topic: both its pros and cons.
> > If anyone has any resources they could direct me to or
> > have materials, comments, or opinions related to this
> > issue I would be very appreciative. Some specific
> > questions I'm looking at are:
> > Is DC in compatible with MARC functions? In what ways?
> > Are certain fields and qualifiers in DC more
> > applicable to traditional cataloging needs than
> > others?
> > What is the opinion of the DC community regarding
> > cataloging of electronic records (was Dublin Core
> > originally conceived as an alternative to MARC)?
> > What is the general consensus of the Librarian's
> > Working Group for using DC for cataloging?
> > Thank you,
> > Daniel Scott Angel Ph.D.
> >
> >
> > __________________________________________________
> > Do You Yahoo!?
> > From homework help to love advice, Yahoo! Experts has your answer.
> > http://experts.yahoo.com/
> >
--
David Dorman
Library Consultant
Lincoln Trail Libraries System
Champaign, Illinois
217-352-0047
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