Become an Authority on Authorities

1
Become an Authority on Authorities

• Coby Johnson
• Montana Library Association
• April 25, 2004
• coburn.johnson_at_umontana.edu

2
Outline

• What are authority records?
• Basics of MARC
• MARC components of authority records in OCLC and
  LC authority files
• Creating cross references
• Discussion of Should we do authority work? QA

3
Authority records

• Standardized control for access points
• names of people
• corporate bodies
• meetings
• uniform titles
• subjects
• series

4
Authority records

• Control MARC bib tags
• 1XX
• 240
• 6XX
• 7XX
• 8XX

5
Authority records

• Montana. Dept. of Natural Resources and
  Conservation vs. DNRC
• Unidentified flying objects vs. UFOs

6
(No Transcript)
7
(No Transcript)
8
(No Transcript)
9
(No Transcript)
10
(No Transcript)
11
Authority records

• Twain, Mark, 1835-1910 vs. Clemens, Samuel
  Langhorne, 1835-1910
• The adventures of Tom Sawyer vs. Tom Sawyer

12
(No Transcript)
13
(No Transcript)
14
(No Transcript)
15
(No Transcript)
16
(No Transcript)
17
Authority records

• Headings must be consistent
• Twain vs. Clemens
• Headings must be unique
• Madonna (singer, actress) vs. The Madonna (mother
  of Jesus)

18
(No Transcript)
19
(No Transcript)
20
(No Transcript)
21
(No Transcript)
22
Authority records

• Rules -- Chapters 22-26, Anglo-American
  Cataloguing Rules, 2nd edition, 2002 Revision
• Library of Congress Subject Heading List
• Sources
• NAF
• SAF
• http//authorities.loc.gov

23
Basics of MARC

• MAchine Readable Cataloging record
• Essentially a markup language for the catalog
  record
• MARC 21 for Bibliographic, Authorities, Holdings,
  Classification, Community Information

24
Basics of MARC

• Signposts are
• Field
• Tag
• Indicator
• Subfield
• Subfield code
• Content designator

25
Basics of MARC

• Tags and indicators
• 100 1_ for personal name
• 400 1_ for a see from reference for a personal
  name
• 500 1_ for a see also from tracing for a personal
  name
• 670 __ for a source data found note

26
Basics of MARC

• Subfields
• 110 1_ a Montana. b Dept. of Natural Resources
  and Conservation
• Content designator is the overarching term used
  to name the tags, indicators, and subfields

27
MARC authority records

• Fixed-length fields
• Leader
• Directory
• 008

28
00462cz 2200133n 450000100070000000500170000700
80041000240100017000650350021000820400023001031000
02000126670004400146670013800190-830737-2003102913
0637.0-000814n acannaabn n aaa -
an 00093524 - a(DLC)n 00093524-
aDLCbengcDLCdDLC-1 aFrankel, Martin-
aThief, 2000bCIP t.p. (Martin Frankel)- aThe
pretender, c2002bt.p. (Martin Frankel) p. 11,
etc. (Martin Richard Frankel not the same as
Martin R. Frankel in LC database)
29
008 Fixed fields

• 39 characters in MARC 21
• 008 tag in a MARC 21 record (LC example)
• Mnemonic codes at top of record in OCLC

30
(No Transcript)
31
(No Transcript)
32
008 780801n acannaabn a aba
33
Variable fields

• 0XX Standard numbers, classification numbers,
  codes
• 1XX Headings
• 2XX Complex see references
• 3XX Complex see also references
• 4XX See from tracings
• 5XX See also references
• 6XX Notes
• 7XX Linking entries
• 8XX Alternate graphics
• 9XX Local fields

34
Most common 0XX tags

• 010 Library of Congress control number
• 035 System control number
• 040 Cataloging Source
• 050 Library of Congress classification number

35
(No Transcript)
36
Most common 1XX tags

• 100 Personal name
• 110 Corporate name
• 111 Meeting name
• 130 Uniform title
• 150 Topical terms
• 151 Geographic names
• 180 General subdivisions x
• 185 Form subdivisions v

37
(No Transcript)
38
(No Transcript)
39
(No Transcript)
40
(No Transcript)
41
Most common Reference tags

• 360 Complex see also reference
• 400 See from tracing Personal name
• 410 See from tracing Corporate name
• 411 See from tracing Meeting name
• 430 See from tracing Uniform title
• 450 See from tracing Topical term
• 451 See from tracing Geographic name
• 480 See from tracing General subdivision
• 485 See from tracing Form subdivision

42
Most common Reference tags

• 500 See also from tracing Personal name
• 510 See also from tracing Corporate name
• 511 See also from tracing Meeting name
• 530 See also from tracing Uniform title
• 550 See also from tracing Topical term
• 551 See also from tracing Geographic name
• 580 See also from tracing General subdivision
• 585 See also from tracing Form subdivision

43
(No Transcript)
44
Series treatment tags

• 640 Series dates of publication and/or Sequential
  Designation
• 641 Series numbering peculiarities
• 642 Series numbering example
• 643 Series place and publisher/issuing body
• 644 Series analysis practice
• 645 Series tracing practice
• 646 Series classification practice

45
(No Transcript)
46
Other 6XX tags

• 663 Complex see also reference - Name
• 664 Complex see reference - Name
• 665 History reference
• 666 General explanatory reference - Name

47
(No Transcript)
48
6XX Notes tags

• 667 Nonpublic general note
• 670 Source data found
• 675 Source data not found
• 678 Biographical or historical note
• 680 Public note
• 681 Subject example tracing note

49
(No Transcript)
50
(No Transcript)
51
(No Transcript)
52
7XX, 8XX, 9XX tags

• 7XXs Subdivision linking entry
• 8XXs Location and alternative graphics
• 9XXs Local tags

53
LC Authority File

• Z 39.50 Compliant
• Two displays
• Full MARC
• Labeled display

54
(No Transcript)
55
(No Transcript)
56
Cross references

• AACR2 Rules
• 22.1A In general, choose, as the basis of the
  heading for a person, the name by which he or she
  is commonly known. This may be the persons real
  name, pseudonym, title of nobility, nickname,
  initials, or other appellation. .

57
Cross references

• AACR2 Rules
• 22.2B1 If all the works by one person appear
  under one pseudonym, choose the pseudonym. If the
  real name is known, make a reference from the
  real name to the pseudonym. 400
• 22.2B2 If a person has established two or more
  bibliographic identities, as indicated by the
  fact that works of one type appear under one
  pseudonym and works of other types appear under
  other pseudonyms or the persons real name,
  choose, as the basis for the heading for each
  group of works, the name by which works in that
  group are identified. Make references to connect
  the names. 500

58
(No Transcript)
59
(No Transcript)
60
(No Transcript)
61
(No Transcript)
62
Cross reference problems

• Lack of absolute consistency between AACR2 and
  MARC
• ILS that are not 100 MARC compliant
• Inconsistencies in Authority databases
• Library of Congress - old and new headings
• OCLC problems from LC and what happens when you
  are the 1000 lb gorilla

63
Should we do authority control
64
(No Transcript)
65
(No Transcript)
66
(No Transcript)