[OAI-implementers] Dublin Core Identifiers Types and Formats for multi-file data records

David Valentine valentine@library.ucsb.edu
Tue, 13 Aug 2002 13:48:34 -0700

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Question about records, and identifiers:

Geographic data often comprises many files (tiff with tiff world, in this case).
We have catalog records of these files. The question becomes what are we
describing when I point to a catalog record which lists the various pieces,
rather than the actual image/data.

If I point at a catalog record, would this make the OAI record a service? or is
it still an image? or is it both?

Since the final resource is really an image, I am planning on leaving the type
as "image", with a format of image/tif (even though no image/tif exists in the
official dcmi type vocabulary (
http://www.isi.edu/in-notes/iana/assignments/media-types/media-types )

I've attached a present draft of the sample record.

David Valentine
Map & Imagery Laboratory
UCSB Davidson Library
phone: 805 893 4545
fax:      805 893 8799

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<?xml version=3D"1.0" encoding=3D"UTF-8"?>=0A=
<GetRecord xmlns=3D"http://www.w3.org/2001/XMLSchema-instance" =
xsi:schemaLocation=3D"http://www.openarchives.org/OAI/1.1/OAI_GetRecord =
    <responseDate xmlns=3D"">2002-08-13T13:36:12-08:00</responseDate>=0A=
    <requestURL =
    <record xmlns=3D"">=0A=
            <dc xmlns=3D"http://www.w3.org/2000/10/XMLSchema-instance" =
xsi:schemaloc=3D"http://purl.org/dc/elements/1.1/ =
                <identifier xmlns=3D"">                    =
                <identifier xmlns=3D"">N3245-W11452.5/7.5</identifier>=0A=
                <identifier xmlns=3D"">      =
                <creator xmlns=3D"">United States Geological =
                <date xmlns=3D"">1963-01-01</date>=0A=
                <title xmlns=3D"">DRG o32114g8, Digital Raster Graphic of=0A=
                    CACTUS, CA CA</title>=0A=
                <subject xmlns=3D"">Maps - Digital - Raster</subject>=0A=
                <description xmlns=3D"">DRGs (Digital Raster Graphics) =
                    scans of                     the U.S. Geological=0A=
                    Survey topographic                     quadrangles a=0A=
                    DRG is composed of a TIFF file and a=0A=
                    TIFF World file. TIFF World files are needed to tile=0A=
                    adjacent DRGs. For more detailed technical=0A=
                    information than what appears in this record,=0A=
                    consult series metadata. Files are available both=0A=
                    on-line and on computer optical disc =
                <publisher xmlns=3D"">Teale Data Center, Sacramento, =
                <contributor xmlns=3D"">Alexandria Digital =
                <type xmlns=3D"">maps</type>=0A=
                <type xmlns=3D"">=0A=
                <format xmlns=3D"">=0A=
                <format xmlns=3D"">digital TIFF</format>=0A=
                <source xmlns=3D""/>=0A=
                <relation xmlns=3D""/>=0A=
                <coverage xmlns=3D"">=0A=
                    <placename>CACTUS, CA, United States</placename>=0A=
                        <Box projection=3D"Geographic">=0A=
                            <northlimit units=3D"signed decimal =
                            <eastlimit units=3D"signed decimal =
                            <southlimit units=3D"signed decimal =
                            <westlimit units=3D"signed decimal =
                <rights xmlns=3D"">Access constraints None. </rights>=0A=
                <rights xmlns=3D""> Use constraints Uncopyrighted. =
                <rights xmlns=3D"">Legal disclaimer The Regents of the=0A=
                    University of California disclaim any applicable=0A=
                    implied warranties, including, but not limited to,=0A=
                    the implied warranties of merchantability and=0A=
                    fitness for a particular purpose. In addition, no=0A=
                    warranty whatsoever accompanies the data available=0A=
                    herein, and it is provided on an &quot;as is&quot;=0A=
                    basis. The Regents of the University of California=0A=
                    shall not be liable for any direct, indirect,=0A=
                    special, incidental, or consequential damages=0A=
                    arising out of the use of this data or from making=0A=
                    this data available, even if it has been informed of=0A=
                    the possibility of such damages.       </rights>=0A=