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MARC PROPOSAL NO. 2021-04

DATE: December 22, 2020
REVISED:

NAME: Adding Subfields $0 and $1 to Field 022 in the MARC Bibliographic and Authority Formats

SOURCE: ISSN Review Group, ISSN International Centre, Paris

SUMMARY: This paper proposes adding subfields $0 (Authority record control number or standard number) and $1 (Real World Object URI) to field 022 (International Standard Serial Number) in the MARC 21 Bibliographic Format and Authority Format, in order to provide a place in the ISSN field for the ISSN URI.

KEYWORDS: Field 022 (BD, AD); International Standard Serial Number (BD, AD); ISSN (BD, AD); Subfield $0, in field 022 (BD, AD); Authority record control number or standard number (BD, AD); Subfield $1, in field 022 (BD, AD); Real World Object URI (BD, AD); Uniform Resource Identifier, URI

RELATED: 2020-DP11; 2020-FT03; 2020-FT02; 2017-08

STATUS/COMMENTS:
12/22/20 – Made available to the MARC community for discussion.

01/26/21 – Results of MARC Advisory Committee discussion: Approved as submitted.

04/28/21 - Results of MARC Steering Group review - Agreed with the MAC decision.


Proposal No. 2021-04: Adding Subfields $0 and $1 to Field 022

1. BACKGROUND

The goal of this proposal is to define subfields $0 (Authority record control number or standard number) and $1 (Real World Object URI) in Field 022 in order to provide a place in the ISSN field for the ISSN URI. Subfields $0 and $1 have been added to many MARC fields in recent years. Field 022, the field for the International Standard Serial Number, currently lacks subfields $0 and $1.

2. DISCUSSION

The scope of subfield $0 was broadened to include the recording of standard numbers and identifiers in Proposal 2010-06. Papers 2016-DP19 and 2017-08 also added subfield $0 to several MARC fields.

This paper proposes defining subfields $0 and $1 for field 022. To remain consistent with other fields, $1 (Real World Object URI) has been proposed. Most recently, papers 2020-FT02 and 2020-FT03 added both subfields $0 and $1 to MARC fields.

The main use case for adding a URI in the ISSN field, related to Field 022 $a, is that it will serve as an authoritative work identifier for the serial. The MARC community does not have any clear-cut identifiers for works at this time. In some cases, the LCCN of a title or name-title authority record can serve as a work identifier, but the LCCN in a MARC bibliographic record functions primarily as a record identifier at the manifestation level.  In the updated  RDA, which is based on IFLA’s Library Reference Model (LRM), for each serial work there is only one expression and one manifestation, (the “WEM lock”), thus positioning ISSN at the work level.

It should be noted that subfield $0 or $1 follows the subfield to which it applies. Existing subfields in Field 022 contain, for example, ISSNs that are incorrect or pertain to other resources. Subfield $2 contains the ISSN center code. In the examples that follow, $0 or $1 always follows $a which is the subfield defined for the valid International Standard Serial Number. Subfield $0 or $1 should always contain the URI related to $a only.

Discussion of 2020-DP11 that took place during the June/July 2020 MAC meeting prompted the following clarification that 022 cannot be repeated in the ISSN Register and that subfield $l (el) (currently used for the Linking ISSN) should be removed to a separate field in the future. Although field 022 is repeatable in MARC 21, it is not repeatable in ISSN Network records so repeating the field is not a viable option for ISSN Network use. A fundamental part of the ISSN database structure is that there is only one 022 field with one ISSN per record and one record per ISSN. In order to provide a place for the URI pertaining to ISSN-L (the linking ISSN), and to remove any ambiguity about URIs in field 022, the ISSN Network intends to submit a future proposal for the creation of a new repeatable field (perhaps 023) for the ISSN-L that could be repeated for any future cluster ISSNs which might be developed. The ISSN-L subfield would be removed from field 022, therefore removing ambiguity in the $0 and $1 references given that no URIs exist for incorrect or cancelled ISSNs.

3. PROPOSED CHANGES

In Field 022 of the MARC 21 Bibliographic and Authority Formats, add subfields $0 and $1 as follows (underlined):

022 – International Standard Serial Number (R)

Field Definition and Scope
International Standard Serial Number (ISSN), a unique identification number assigned to a continuing resource, and/or any incorrect or canceled ISSN.

First Indicator: Level of international interest
# - No level specified
0 - Continuing resource of international interest
1 - Continuing resource not of international interest
Second Indicator: Undefined
# - Undefined

Subfield Codes

$a - International Standard Serial Number (NR)

$l - ISSN-L (NR)

$m - Canceled ISSN-L (R)

$y - Incorrect ISSN (R)

$z - Canceled ISSN (R)

$0 – Authority record control number or standard identifier (NR)
A URI for the ISSN in subfield $a.
See description of this subfield in Appendix A: Control Subfields.

$1 - Real World Object URI (R)
See description of this subfield in Appendix A: Control Subfields.

$2 - Source (NR)

$6 - Linkage (NR)

$8 - Field link and sequence number (R)

4. EXAMPLES

Bibliographic Format Examples:

Example 1

022 0# $a 2712-0597 $0 http://issn.org/resource/ISSN/2712-0597#ISSN $l 2712-0589 $2 46
222 ## $a Bosnian journal of cardiovascular medicine $b (Online)
245 1# $a Bosnian journal of cardiovascular medicine.

Example 2

022 0# $a 1909-7476 $0 http://issn.org/resource/ISSN/1909-7476#ISSN  $l 1909-7476 $2 21
222 ## $a Avances científicos en oncología
245 1# $a Avances científicos en oncología.

Example 3

022 0# $a 0904-7379 $0 http://issn.org/resource/ISSN/0904-7379#ISSN $l 0904-7379 $z 0900-7601 $2 h
222 ## $a Terrier nyt
245 10 $a Terrier nyt.

Example 4

022 0# $a 1534-9322 $0 http://issn.org/resource/ISSN/1534-9322#ISSN
 $l 0739-4713 $y 0739-4713 $z 1542-5894 $m 1534-9322 $2 1
222 #0 $a Composition studies
245 10 $a Composition studies.

Authority Format Examples:

Example 5

022 ## $a 1098-4186 $0 http://issn.org/resource/ISSN/1098-4186#ISSN
130 #0  Caribbean studies (Peter Lang Publishing)
430 #0  CS (Series) (Peter Lang Publishing)

Example 6

022 ## $a 1424-8689 $0 http://issn.org/resource/ISSN/1424-8689#ISSN
130 #0 Linguistic insights
410 2# Centro di recerca sui linguaggi specialistici (Università di Bergamo). $t Linguistic insights
430 #0 li (Linguistic insights)
430 #0 l. i. (Linguistic insights)
430 #0 Studies in language and communication (Peter Lang Publishing)

5. BIBFRAME DISCUSSION

Including subfield $0 and $1 in field 022 will enable a smooth conversion of BIBFRAME data to the MARC format that preserves the URIs that come from the BIBFRAME description, since URIs added within a BIBFRAME editor, or by a MARC to BIBFRAME data conversion, will be preserved. In BIBFRAME, the most recent conversion of the ISSN places it within the BIBFRAME work.

6. SUMMARY OF PROPOSED CHANGES

In field 022 (International Standard Serial Number) of the MARC 21 Bibliographic and Authority Formats, add the following subfields:

$0 - Authority record control number or standard number (NR)
$1 - Real World Object URI (R)


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