Representation of DDC in MARC 21 Bibliographic Format: An Update

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Representation of DDC in MARC 21 Bibliographic
Format An Update

• Dewey Breakfast/Update
• ALA Annual Meeting
• July 11, 2009

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Outline 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

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MARC 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

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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)

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Example 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 fiction20th century

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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)

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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)

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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)

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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 GenealogyComputer network
  resourcesDirectories

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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

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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

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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)

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Example 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 buildingsWashington (D.C.)
• 725.17 Official residences has the note
  Including embassy, legation, consulate
  buildings
• T2753 Washington, D.C.

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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 industryUnited States

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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
• T273 United States

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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
• CrimeUnited StatesCase studies
• MurderUnited StatesCase studies
• Criminal investigationUnited StatesPopular
  works
• CSI crime scene investigation (Television
  program)

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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

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Question for discussion

• How might you use the 083 field?