I like "units"! Reminds me of my "box-o-stuff" problem, though ... which, in my mind, is still an issue.
Julie Moore Fresno State On Tue, Apr 10, 2012 at 6:45 AM, Brenndorfer, Thomas < tbrenndor...@library.guelph.on.ca> wrote: > By my count, there are several kinds of "units" for Extent in RDA: > > > Units for Carrier Type, or, Units for term substituting for Carrier Type > > Units for cartographic resources; can be subunits for some carriers > > Units for notated music; can be subunits for some carriers > > Units for still images; can be subunits for some carriers > > Units for three-dimensional forms; can have further subunits of component > pieces > > Units for text (these stand alone as the subunits when a single volume is > involved; otherwise use units for Carrier Type (volume, sheet)); can be > subunits for some other carriers or used with special units (cartographic, > notated music) > > Special subunits for certain carriers-- special subunits can be used for > computer carriers, filmstrips and filmslips, flipcharts, microfiche, > overhead transparencies, stereographs, videodiscs of still images > > > Thomas Brenndorfer > Guelph Public Library > > > > > > > -----Original Message----- > > From: Resource Description and Access / Resource Description and Access > > [mailto:RDA-L@LISTSERV.LAC-BAC.GC.CA] On Behalf Of Karen Coyle > > Sent: April 10, 2012 12:24 AM > > To: RDA-L@LISTSERV.LAC-BAC.GC.CA > > Subject: Re: [RDA-L] Content and carrier > > > > Thomas, it seems that you have introduced a new category: "unit." Given > > that my interest is in creating an actual machine-actionable format for > > this data, I have to ask: would this unit be coded as content, carrier, > or > > is it something different? > > > > kc > > > > On 4/10/12 1:26 AM, Brenndorfer, Thomas wrote: > > > ________________________________________ > > > From: Resource Description and Access / Resource Description and Access > > [RDA-L@LISTSERV.LAC-BAC.GC.CA] On Behalf Of Karen Coyle [ > li...@kcoyle.net] > > > Sent: April-09-12 1:48 PM > > > To: RDA-L@LISTSERV.LAC-BAC.GC.CA > > > Subject: Re: [RDA-L] Content and carrier > > > > > > .... > > >> So it looks like RDA does try to do a better separation of content and > > >> carrier than exists in MARC, at least in the fixed field area. Also, > RDA > > >> content has the various cartographic types (dataset, image, > > >> 3-dimensional, etc.) which I assume are subsumed under "map" in the > MARC > > >> 007. > > > > > > Rather the 007 for map is subsumed under LDR/06=e for cartographic > > resources. The 007s for map and globe correspond to the cartographic > > expression units (i.e., the cartographic extent units). My understanding > is > > that the 007 for map is applied to all cartographic resources, except > > globes and if the carrier type is microform. Other 007s would be added > for > > the actual carriers' Media Type, like "projected" or "computer" or > > "microform". The carriers are different -- volume, slide, object, > computer > > disc -- and don't indicate anything cartographic in and of themselves. > > > > > > > > >>> > > >>> An "atlas" can't be a carrier-- the carrier is defined in the > > >>> RDA/ONIX Framework has having attributes such as binding and > > >>> intermediation device. An "atlas" is only cartographic content, and > > >>> the physical carrier could be three distinct physical volumes. > > >>> > > >>> Using all the elements, an atlas could be: > > >>> > > >>> Content Type: cartographic image Media Type: unmediated Carrier Type: > > >>> volume Extent of Cartographic Resource: 1 atlas (3 volumes) > > >>> > > > > > >> But it is listed in RDA under "extent of cartographic resource." So > it's > > >> either content or carrier, and it isn't in the RDA content list. So > it > > >> seems that you are saying that the "extent of cartographic" list is > > >> neither content nor carrier, but a display form that includes both? > > > > > > > > > RDA 3.4.2.1 for the application of cartographic units points to > "printed, > > manuscript, graphic or three-dimensional resource" for situations in > which > > the cartographic unit appears first, followed by, on occasion, the > carrier > > type value, as in: > > > > > > 1 atlas (3 volumes) > > > > > > > > > The situation is reversed for the other carrier types, in which the > > cartographic unit follows the carrier type value: > > > > > > 1 computer disc (xv pages, 150 maps) > > > [from RDA 3.4.1.7.1] > > > > > > Specifically, cartographic units are used as subunits for: > > > > > > RDA 3.4.1.7.1 - computer discs, cartridges, etc. > > > RDA 3.4.1.7.4 - microfiches [this is actually being corrected in the > > April update to RDA to reflect subunits for all types of microform] > > > RDA 3.4.1.7.5 - online resources > > > > > > > > > > > > > > >> > > >>> The Carrier Type is what conveys the content -- it's not the content > > >>> itself. Specific content and form values like "map", "globe", > > >>> "poster", "drawing", "game", "coin", "score" describe content and > > >>> cannot serve as Carrier Type values. Values like "pages" and "leaves" > > >>> are better described as subunits of volumes, or potentially subunits > > >>> of other carriers such as microform or online resources. > > > > > >> OK, this makes sense. But I don't understand what you are saying about > > >> RDA's use of these. Are you saying that RDA's use of terms like > "atlas" > > >> in Extent of Cartographic unit is a good thing? And do you see it as > > >> content, carrier, or both? > > > > > > > > > As in the above examples, it's a bit confusing when the carrier type > can > > be both before or after the cartographic unit in the Extent element. > > > > > > It's easier to understand if there's a bit more granularity, with a > > recognition that the cartographic units are really expression terms, not > > manifestation terms. Carrying expression data inside of a manifestation > > element isn't wrong, I would say-- it's just may lead to some > > inefficiencies in duplicating that information for every manifestation > for > > the same expression. > > > > > > Thomas Brenndorfer > > > Guelph Public Library > > > > -- > > Karen Coyle > > kco...@kcoyle.net http://kcoyle.net > > ph: 1-510-540-7596 > > m: 1-510-435-8234 > > skype: kcoylenet > -- Julie Renee Moore Catalog Librarian California State University, Fresno julie.renee.mo...@gmail.com 559-278-5813 "In the end only kindness matters." -- Jewel
