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DATE: May 31, 2013
REVISED:
NAME: Defining Subfields for Qualifiers to Standard Identifiers in the MARC 21 Bibliographic, Authority, and Holdings Formats
SOURCE: Library of Congress (LC), Canadian Committee on MARC (CCM)
SUMMARY: This paper proposes defining subfield $q (Qualifying information) in field 015 National Bibliography Number (BD); field 020 International Standard Book Number (BD, AD, HD), field 024 Other Standard Identifier (BD, AD, HD), and field 027 Standard Technical Report Number (BD, AD, HD) to accommodate qualifiers to the standard identifiers recorded in those fields.
KEYWORDS: Field 015 (BD); National Bibliography Number (BD); Field 020 (BD, AD, HD); International Standard Book Number (BD, AD, HD); Field 024 (BD, AD, HD); Other Standard Identifier (BD, AD, HD); Field 027 (BD, AD, HD); Standard Technical Report Number (BD, AD, HD); Identifiers (BD, AD, HD)
STATUS/COMMENTS:
05/31/13 – Made available to the MARC community for discussion.
06/30/13 – Results of MARC Advisory Committee discussion: Approved as submitted with some editorial changes to the examples.
07/25/13 – Results of LC/LAC/BL review - Agreed with the MARBI decision.
In June 2012 MARBI approved Proposal 2012-06, which defined a repeatable subfield $q (Qualifying information) in Field 028 (Publisher Number) in the MARC Bibliographic format. Subfield $q was approved to enable recording qualifications for the identifiers in $a when the resource bears more than one identifier of the same type or when identifiers for parts of the resource are recorded. At the time of the decision there was consensus that other identifier fields be analyzed to see if separate subfielding would be equally useful for them. A discussion paper 2013-DP02 was presented to MARBI in January 2013 to open the discussion about a subfield for qualifying information in other standard number fields. Identifiers for manifestations covered by the RDA instructions include: International Standard Book Numbers (ISBN), which are encoded in field 020; International Standard Serial Numbers (ISSN), which are encoded in field 022; and other standard identifiers (e.g. Uniform Resource Number (URN), International Standard Music Number (ISMN), etc.), which are encoded in field 024 of the MARC Bibliographic, Authority, and Holdings Formats. Though existing subfields in fields 020 and 024 contain language that allows recording parenthetical qualifying information (even if those subfields were not solely defined for that purpose), fields 022 (ISSN) and 027 (Standard Technical Report Number) contain no such content designation for that allowance. Extensive discussion at the MARBI midwinter meeting in January 2013 indicated that $q was not needed for field 022 at this time. Field 027 was added to the analysis as another field that may benefit from adding subfield $q.
In response to Discussion Paper 2013-DP02 MARBI/MAC suggested that a proposal be developed to add the subfield for the qualifier to 020, 024 and 027. It was also suggested that national bibliographic agency numbers (encoded in field 015) should be included since they are treated as standard identifiers and can sometimes include qualifying information in qualifiers.
2.1. Current definition of Field 015 in the Bibliographic Format:
Discussion
Current practice is to record parenthetical qualifying information in subfield $a. Defining a separate subfield $q in 015 for the sole purpose of recording qualification may improve efficiency and granularity.
2.2 Current definition of Field 020 in the Bibliographic Format:
Discussion
Current practice is to include any parenthetical qualifying information such as paperback, hardcover, microfiche, etc. in subfield $a. Machine matching of the standard numbers could be improved and be simpler to implement if the actual standard number was encoded separately from the qualifying information. In addition, the improved granularity this offers is consistent with the desire to provide explicit coding for data elements defined independently in RDA.
These examples show the proposed approach:
Example 1:
020 ## $a0394502884$qRandom House$c$12.50
020 ## $a0394170660$qRandom House$qpaperback$c$4.95
[Leader/18 "c" ISBD punctuation omitted at subfield boundaries]
Example 2:
020 ##$a0456789012$qreel 1
020 ##$z0567890123$qreel 2
[Leader/18 "c" ISBD punctuation omitted at subfield boundaries]
Example 3:
020 ##$a0491001304
020 ##$a9780060723804$q(acid-free paper)
020 ##$a9780060799748$q(trade)
020 ##$a0717941728$q(folded) :$c$0.45
020 ##$a0914378260$q(pbk. ; $qvolume 1) :$c$5.00
020 ##$a0394502884$q(Random House) :$c$12.50
[Leader/18 "i" ISBD punctuation included]
2.3. Current Definition of Field 024 in the Bibliographic Format:
Discussion
Current practice is to include any parenthetical qualifying information in subfield $c which is currently defined as follows:
$c - Terms of availability
Price or a brief statement of availability and any parenthetical qualifying information pertaining to an item associated with a number being recorded in the field. Information is only recorded in this subfield when a number is present in subfield $a.
Subfield $c, however, also allows for the recording of price and/or a statement of availability. For reasons similar to adding $q to field 020 (ISBN), it could be more efficient and improve granularity if the two types of additional information (obtaining and defining) were separated and a subfield were defined for the sole purpose of recording qualification. The following example shows the proposed approach (illustrating a record with two ISMNs):
024 2# $aM570406203$q(score ; $qsewn) :$cEUR28.50
024 2# $aM570406210$q(parts ; $qsewn)
[Leader/18 "i" ISBD punctuation included]or
024 2# $aM570406203$qscore$qsewn$cEUR28.50
024 2# $aM570406210$qparts$qsewn
[Leader/18 "c" ISBD punctuation omitted at subfield boundaries]
2.4. Current Definition of Field 027 in the Bibliographic Format:
Discussion
There is currently no content designation in field 027 that allows separately recording parenthetical qualifying information. Defining a subfield ($q) in 027 for the sole purpose of recording qualification may improve efficiency and granularity.
3.1. Define repeatable 015 $q (Qualifying information) in the Bibliographic Format. Move the current final paragraph and example from subfield $a to $q.
$q - Qualifying information (R)
A brief statement of qualifying information concerning the record control number being recorded in subfield $a.
Volume numbers or other data that qualify a national bibliography number are recorded in subfield $q following the number and are enclosed in parentheses.
015 ## $aF67-835$q(v. 1)$aF67-9455$q(v. 2)
[Leader 18 "i" ISBD punctuation included]
3.2. Define repeatable 020 $q (Qualifying information) and edit the definition of $c (Terms of availability) in both the Bibliographic and Authority Formats.
$c - Terms of availability
Price or a brief statement of availabilityand any parenthetical qualifying informationconcerning the item.$q - Qualifying information (R)
A brief statement of qualifying information concerning the item associated with a number being recorded in subfield $a.
3.3. Define repeatable 024 $q (Qualifying information) and edit the definition of $c (Terms of availability) in both the Bibliographic and Authority Formats.
$c - Terms of availability
Price or a brief statement of availabilityand any parenthetical qualifying informationpertaining to an item associated with a number being recorded in the field.$q - Qualifying information (R)
A brief statement of qualifying information concerning the item associated with a number being recorded in subfield $a.
3.4. Define repeatable 027 $q (Qualifying information) in the Bibliographic, Authority and Holdings Formats.
$q - Qualifying information (R)
A brief statement of qualifying information concerning the item associated with a number being recorded in subfield $a.
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