On a different note and more details:

Quoting James Weinheimer <weinheimer.ji...@gmail.com>:




What the date in the 240 is supposed to represent, although it is highly inconsistent in practice, is to break a conflict with another uniform title (i.e. 1xx/240 combination). They do this mostly with a publication date (unfortunately),

Same as with authority-controlled names, right?

and I would prefer something more meaningful, e.g. the name of the translator, and if necessary, edition statement, or something more meaningful than a publication date.

ditto something more meaningful than date of birth.
  http://kcoyle.blogspot.com/2007/09/name-authority-control-aka-name.html

 But the rule is that mostly, you use the publication date of
the first manifestation of the "expression". (I can't find the rule for this right now, since I don't have access to a lot) The only example I can find right now is King Kong: http://lccn.loc.gov/90715189, where if you look at the related titles, you will see 1933, while the date of publication of this item is 1984. "King Kong (Motion picture : 1933)"

Aha! Thanks. Although... isn't this an even more arcane bit of data than the first date of the work? And many (including you) were doubtful that catalogers could supply that.

In general I am having a hard time understanding how we will treat these kinds of composite headings in any future data carrier. They seem to be somewhat idiosyncratic, in that what data gets added is up to the cataloger, depends on the context, and probably cannot be generated algorithmically. This whole part about headings (access points in RDA, I believe) has me rather stumped from a design point of view. At the same time, if all of the individual elements are available, and one links manifestations of a single expression, then some system feature may be able to display this distinction to the user without the use of individual cataloger-formed headings. This would also mean that the records can be created without being dependent on a particular context, which should make sharing of data even more accurate.

kc


It has to be qualified somehow and I guess this is better than King Kong (Motion picture : Fay Wray screaming) although this would have much more meaning to people.

My next podcast will deal with some of these distinctions in a funny way (I hope!). It should come out very soon, so watch for it!
Ciao,
Jim

On 03/08/2011 19:07, Karen Coyle wrote:
Quoting James Weinheimer <weinheimer.ji...@gmail.com>:


While there is an undoubted loss in semantics, with the future evolution of MARC format, we can ask: do such losses have any practical consequences? Although I think many subfields (although not the information) could disappear without any essential loss, some will have important consequences to different communities.

Jim, this is much of the motivation for the work that I have been doing to try to identify the actual "elements" of MARC21 -- elements in the semantic sense, trying to ignore the MARC21 structure (which results in much repetition, etc.) A report on my study is available in the recent Code4Lib journal:

http://journal.code4lib.org/articles/5468

One of the difficulties of deciding what we do and do not want to keep in MARC, or what we want to move over to the RDA environment, is that we have no dictionary of everything that MARC covers. For example, what standard identifiers are available in MARC? They are scattered all over the format, so it's hard to know. What about things like language and date? Those appear in different fields with somewhat different meanings.

My assumption is that a complete inventory of MARC elements is essential for any move away from MARC. Unfortunately, I have gotten now to the 1xx-8xx fields (the study so far is 00x and 0xx, that's already pretty complex!) and may not have the energy to complete the study on my own. However, what I have done so far at least sets down some possible principles to follow.

I'm doing it all on the futurelib wiki so my process is as transparent as I can make it:
http://futurelib.pbworks.com/w/page/29114548/MARC%20elements

kc

--
James Weinheimer  weinheimer.ji...@gmail.com
First Thus: http://catalogingmatters.blogspot.com/
Cooperative Cataloging Rules: http://sites.google.com/site/opencatalogingrules/




--
Karen Coyle
kco...@kcoyle.net http://kcoyle.net
ph: 1-510-540-7596
m: 1-510-435-8234
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