Representation of DDC in MARC 21 Bibliographic Format:

An Update

Representation of DDC in MARC 21 Bibliographic Format:

An Update

Dewey Breakfast/UpdateALA Annual Meeting

July 11, 2009

Outline: 082, 085, 083Outline: 082, 085, 083

•082 field Dewey Decimal Classification Number (R): new subfields

•085 Synthesized Classification Number Components

•083 Additional Dewey Decimal Classification Number

•Discussion: 083

MARC Bibliographic format: 082, 085, 083MARC Bibliographic format: 082, 085, 083

MARC Proposal No. 2008-01

Submitted jointly by the Dewey editorial team, Deutsche Nationalbibliothek (DNB), Library of Congress, and OCLC

Added to MARC 21 in Update No. 9 (October 2008)

OCLC will implement in WorldCat in August 2009

http://www.loc.gov/marc/bibliographic/bd082.html

http://www.loc.gov/marc/bibliographic/bd085.html

http://www.loc.gov/marc/bibliographic/bd083.html

082 field Dewey Decimal Classification Number (R): new subfields

082 field Dewey Decimal Classification Number (R): new subfields

$m - Standard or optional designation (NR)

a (standard)

b (optional)

$q - Assigning agency (NR)

Used with second indicator 4 (Assigned by agency other than LC)

Example of 082 subfield $mExample of 082 subfield $m

082 00 $a 843/.914 $2 22 $m a

082 04 $a C843/.54 $2 20 $m b

Poulin, Jacques, 1937-

Le Vieux Chagrin: Roman

LCSH: French-Canadian fiction—20th

century

085 Synthesized Classification Number Components (1)085 Synthesized Classification Number Components (1)

To show how a built Dewey number has been built and to specify the component elements

Indicators: both undefined (##)

Subfield Codes:

$a - Number where instructions are found--single number or beginning number of span (R)

$b - Base number (R)

$c - Classification number--Ending number of span (R)

$f - Facet designator (R)

085 Synthesized Classification Number Components (2)085 Synthesized Classification Number Components (2)

$r - Root number (R)

$s - Digits added from classification number in schedule or external table (R)

$t - Digits added from internal subarrangement or add table (R)

$u - Number being analyzed (R)

$v - Number in internal subarrangement or add table where instructions are found (R)

085 Synthesized Classification Number Components (3)085 Synthesized Classification Number Components (3)

$w - Table identification--internal subarrangement or add table (R)

$y - Table number--internal subarrangement or add table (R)

$z - Table identification (R)

$6 - Linkage (NR)

$8 - Field link and sequence number (R)

Example of 085 field (1)Example of 085 field (1)

082 04 $8 1 $a 025.069291 $2 22

085 ## $8 1 $b 025.06 $a 025.06001 $c 025.06999 $s 9291

Web sites for genealogists

LCSH: Genealogy—Computer network

resources—Directories

Example of 085 field (2)Example of 085 field (2)

082 04 $8 1 $a 025.069291 $2 22

085 ## $8 1 $b 025.06 $a 025.06001 $c 025.06999 $s 9291

025.06 Information storage and retrieval systems devoted to specific disciplines and subjects

025.06001-025.06999 Specific disciplines and subjects

929.1 Genealogy

083 Additional Dewey Decimal Classification Number (R) (1)083 Additional Dewey Decimal Classification Number (R) (1)

To be used for Dewey numbers, including internal and external table numbers, added for subject access

Indicators:

First - Type of edition

0 - Full edition

1 - Abridged edition

Second - Undefined

# - Undefined

083 Additional Dewey Decimal Classification Number (R) (2)083 Additional Dewey Decimal Classification Number (R) (2)

Subfield codes (selected):

$a - Classification number (R)

$c - Classification number--Ending number of span (R)

$y - Table number--internal subarrangement or add table (R)

$z - Table identification (R)

$2 - Edition number (NR)

$8 - Field link and sequence number (R)

Example of 083 field: Table 2 notationExample of 083 field: Table 2 notation

082 04 $a 725.17 $2 22

083 0# $z 2 $a 753 $2 22

Embassy Residences in Washington, D.C.

LCSH: Embassy buildings—Washington (D.C.)

725.17 Official residences has the note “Including embassy, legation, consulate buildings”

T2—753 Washington, D.C.

Example of 083 field: Parts of a built number (1)Example of 083 field: Parts of a built number (1)

082 00 $a 338.4761510973 $2 22

083 0# $a 338.47 $2 22

083 0# $a 615.1 $2 22

083 0# $z 2 $a 73 $2 22

Pharmaceutical economics and policy

LCSH: Pharmaceutical industry—United States

Example of 083 field: Parts of a built number (2)Example of 083 field: Parts of a built number (2)

082 00 $a 338.4761510973 $2 22

083 0# $a 338.47 $2 22

083 0# $a 615.1 $2 22

083 0# $z 2 $a 73 $2 22

338.47 Economics of services and specific products

615.1 Pharmaceutical drugs

T2—73 United States

Example of 083 field: Multiple topics (1)Example of 083 field: Multiple topics (1)

True Stories of C.S.I.: The Real Crimes behind the Best Episodes of the Popular TV Show

LCSH:

Crime—United States—Case studies

Murder—United States—Case studies

Criminal investigation—United States—Popular works

CSI: crime scene investigation (Television program)

Example of 083 field: Multiple topics (2)Example of 083 field: Multiple topics (2)

082 00 $a 364.10973 $2 22

083 0# $a 363.250973 $2 22

083 0# $a 791.4572 $2 22

364.1 Criminal offenses

363.25 Detection of crime (Criminal investigation)

791.4572 Single television programs

Question for discussionQuestion for discussion

How might you use the 083 field?