We are adding elements to MODS to be able to parse a citation especially
for the ability to be able to generate an openURL; there has also been
much interest from those needing this type of information to create
bibliographic citations in XML. The initial reasons to add these in MODS
are similar to those for adding to MARC in the proposal that was recently
approved giving fuller citation information in field 773. In MARC we are
constrained by the available subfields in the field, so the parsing is not
as complete as what has been proposed for MODS, although the elements can
be mapped. Since XML doesn't impose a similar restraint it makes sense to
parse the data in MODS.

For full enumeration and chronology information (e.g. the coded MARC
holdings elements that were recently mentioned for seasons), users should
consider using the extension element. It is possible to encode full
holdings information using the existing Z39.50 holdings schema.  See the
MODS guidelines under <extension> for examples. For such complex
information, this should be used in conjunction with free text (in the
proposed <part><date> element.


On Sat, 16 Aug 2003, Karen Coyle wrote:

> I do want to caution that MODS has been developed from the library
> standard, MARC21. That standard is very weak in terms of article
> citation because libraries do not generally create records for
> individual articles -- that is done by a different "industry," mainly
> abstracting and indexing services. Ironically it does seem that most of
> the discussion on this list is how to get MODS to work for article
> citations. I have to admit that this makes me a bit nervous about our
> goals here, and about how much "mission creep" we want to sustain under
> the guise of MODS.
> kc
> On Fri, 2003-08-15 at 07:10, Sigfrid Lundberg wrote:
> > On Fri, 15 Aug 2003, Rebecca S. Guenther wrote:
> >
> > > The additions for citations are in the changes for the next release.
> > > Sorry about the delay. I know I keep saying it's coming.
> >
> > It is just that we're planning to use something like this, and MODS is a
> > candidate.
> >
> > > I will be posting something within the next few days about a draft
> > > schema up for review. This will include the changes for citation data.
> > > During the review period it would be useful for those who might use it
> > > to attempt to code some of their data using the proposed elements in
> > > order to provide feedback.
> >
> > We'll take a look at it then.
> >
> > Thanks a lot
> >
> > Sigge