Hi Adam,
Thank you for your response. In reviewing our planned policy we are
seeing the need to clarify what we are currently doing with 655-0
genres, and also slightly revise what we will do when LC moves all
155's to the LCGFT. Currently we are matching 655-0 genres against
LCSH 155 headings only (or 455 see-reference headings). If there is
no match our system does not move on to the 150 terms, even though
they are allowable by LC. So this shouldn't cause a conflict in
situations such as yours where you have separate subject and genre
indexes.
After further discussion and consideration we feel that we should
continue the same policy rather than adjusting it so 150 terms are
searched if LCGFT headings aren't yet available. After LC deletes
their 155 LCSH authorities and replaces them with new LCGFT
authority records, we will search 655-0 genres against the LCGFT and
if there is no match we will report them on our R07 Genre Unmatched
Headings List rather than moving on to search the LCSH 150 terms.
The above is (and will remain) our standard default policy, but if
you need custom matching rules for your particular situation, we are
happy to create them for you. For those of you who already have
some specialized rules, we will make sure they continue when LC puts
out the LCGFT authorities.
As always, comments, suggestions, and questions are welcome.
Thank you,
Karen Anderson
Authority Control Librarian
Backstage Library Works
On 3/16/2011 11:46 AM, Adam L. Schiff wrote:
Karen,
The problem that we would have with returning LCSH that matches
terms coded 655 _0 is that we have separate subject and genre
indexes in our catalog. An authority with 150 will be indexed in
the subject index, while one with 155 would go into our genre
index. The only way a match on LCSH would work well in our
particular situation would be if you returned that LCSH authority
but with all of the tags changed from X50 to X55.
Of course that would create additional issues as well since we are
likely to also have the LCSH authority for use in the subject
index and it wouldn't be wise to have two different records with
the same LCCN and reference structure that might not be needed in
the genre index.
Probably what would work best in our situation would be to match
655 _0 against LCSH but not return subject authorities. We would
already have the authority anyway if that term had been used as a
subject.
Adam
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Adam L. Schiff
Principal Cataloger
University of Washington Libraries
Box 352900
Seattle, WA 98195-2900
(206) 543-8409
(206) 685-8782 fax
aschiff@u.washington.edu
http://faculty.washington.edu/~aschiff
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
On Tue, 15 Mar 2011, Karen Anderson wrote:
Adam,
Nate asked me to respond to the excellent point you raise about
655?s with 2nd indicator 0.
A 2nd indicator of ?0? in a 655, means that the term came from
the LCSH file. My understanding of current practice
is that if there is no 155 authority term available, then an
appropriate 150 term may be used as a 655 in a
bibliographic record. So, if our system matches a 655 _0 to a
LCSH subject term, it would be considered valid, and
we would return the LCSH subject record.
Everyone?s systems are different and I can see that not everyone
would want subject authority records for genre/form
terms. If our default process doesn?t work for you, we can
offer options based on individual institutions? needs.
For instance, you could choose not to have the 655_0 matched
against the LCSH at all. Or we could match them, but
not return the subject authority records.
655?s with 2nd indicator values other than ?0? (or 7 and
$2lcgft) will be matched against the file indicated in the
$2 as always, according to the client?s profile. Profiles may
always be changed with your project manager.
We appreciate your comments and would welcome any other
suggestions, questions, or comments that you may have.
Regards,
Karen Anderson
On 3/15/2011 2:42 PM, Adam L. Schiff wrote:
Nate,
655 headings with other 2nd indicator and $2
subfield values will be processed as they are
currently per client
profile.
My understanding is that all of the existing 155 authority
records that are currently coded with second
indicator 0 in bib. records will be cancelled and new
authorities with prefix gf will replace them.
Therefore, you will not have any LCSH genre authorities to
match on, so you won't be able to return
authorities for any terms that aren't in LCGFT. Unless I
am misunderstanding, and what you are saying
is that you will actually match against LCSH authorities.
But if that is the case, what can you return
in the way of a genre authority?
For example, let's say we send a bib. record that has
this:
655 _0 Science fiction poetry.
There is not currently a 155 authority for this, and so
there will not (at least in the short term) be
an LCGFT authority for it. So you have nothing to match
on there. But you could match against LCSH:
150 Science fiction poetry.
But what could you return to us in that case, since all
there is is a subject authority, not a genre
authority?
--Adam
**************************************
* Adam L. Schiff * * Principal
Cataloger *
* University of Washington Libraries *
* Box 352900 *
* Seattle, WA 98195-2900 *
* (206) 543-8409 * * (206) 685-8782
fax *
* aschiff@u.washington.edu *
**************************************
_______________________________________________
BSLWAC mailing list
BSLWAC@mailman.xmission.com
http://mailman.xmission.com/cgi-bin/mailman/listinfo/bslwac
--
Karen Anderson
Authority Control Librarian
Backstage Library Works
533 East 1860 South
Provo, Utah 84606
1-800-288-1265
kanderson@bslw.com
_______________________________________________
BSLWAC mailing list
BSLWAC@mailman.xmission.com
http://mailman.xmission.com/cgi-bin/mailman/listinfo/bslwac