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LIS 901B: Summer 2005 Lecture 7

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Development of WWW, browsers, search engines. Future of Authority Control ... Issues in using MARC records from free Web-based services. Combined conversion process ... – PowerPoint PPT presentation

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Title: LIS 901B: Summer 2005 Lecture 7


1
LIS 901B Summer 2005Lecture 7
  • Cataloging Authority Control
  • Online Catalog and Database Management

2
AUTHORITY CONTROL IS
  • the process of maintaining consistency in the
    verbal form used to represent an access point in
    a catalog
  • the further process of providing interconnections
    among names, works, and subjects which display
    any significant relationship

3
AUTHORITY CONTROL IS
  • the process of ensuring that every entry name,
    uniform title, series, or subject that is
    selected as an access point for the catalog is
    unique and does not conflict, by being identical,
    with any other entry that is already in the
    catalog or may be included at a later date.

4
Goals of Authority Control
  • Facilitate the identifying and collocating
    functions of the catalog
  • Users can assume that a consistent term or phrase
    will refer to a particular name, title or
    subject, and that variations will be brought
    together under the one form

5
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6
Problems with Personal Names
  • Pseudonym or pen name
  • Initialized first name
  • Omitted first name
  • Non-roman alphabets
  • Married name vs. maiden name
  • Compound surname
  • Names with nobility
  • Changed names

7
Authority Control
  • Not so difficult 66 of all authors write only
    one book in one edition. But the remaining 34
    can be very difficult--changing names,
    variations, translations, different alphabets,
    etc.

8
Patterns of Chinese Names
  • Lin Yu-tang
  • Ching-chun Hsieh
  • Nelson Chou
  • Jack Kai-tung Huang
  • Nancy Ou-lan Hu Chou
  • Surname first
  • Surname last
  • Chinese first name dropped
  • English first name adopted without dropping
    Chinese first name
  • Womans married name with English first name

9
Married name vs. Maiden Name
  • Good example
  • Elizabeth Taylor

10
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11
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12
Authority Work
  • Includes the research work and intellectual
    effort involved in creating and updating
    authority records
  • Determines if a relationship exists between names
    or subject heading terms
  • Establishes and links the names that could refer
    to the same person
  • Establishes relationships between subject heading
    terms
  • Includes recording the authority data of
    preferred form, variants, history, scope, and
    links to other authority records

13
Steps of Authority Work
  • Researching for variants
  • Choosing one among many
  • Analyzing parts of the term
  • Adding, omitting or modifying the term
  • Handling special language cases
  • Linking the used and the unused
  • Document the process

14
Rec stat c Entered 19820305 Type
z Upd status a Enc lvl n
Source Roman Ref status a Mod
rec Name use a Govt agn
Auth status a Subj a Subj use a
Series n Auth/ref a Geo
subd n Ser use b Ser num n
Name a Subdiv tp n Rules
c 1 010 n 82029644 2 040 DLC c DLC d
DLC d DGPO d DLC d OU 3 005
19980505051956.0 4 100 1 Clinton, Bill, d
1946- 5 400 1 Clinton, William J. q
(William Jefferson), d 1946- 6 400 1 Blythe,
William Jefferson, d 1946- 7 400 1
Klintåun, Båil, d 1946- 8 400 1 òKlinòton,
Bil, d 1946- 9 510 1 Arkansas. b Governor
(1979-1981 Clinton) 10 510 1 Arkansas. b
Governor (1983-1992 Clinton) 11 510 1
United States. b President (1993- Clinton)
15
SYNDETIC STRUCTURE
  • Means Connective and is derived from classical
    Greek
  • Conceived by Charles Cutter who defined syndetic
    catalog as that kind of dictionary catalog which
    binds its entries together by means of
    cross-references so as to form a whole.
  • Great cocktail party term

16
Authority Record
  • Result of authority work
  • A record which shows a heading in the form
    established for use in the catalog
  • Lists cross-references to be made to and from the
    heading
  • Cites the sources consulted in establishing the
    heading

17
Authority File
  • Set of authority records
  • Lists the names, series and subject headings that
    have been established and used in a catalog and
    provides links to related subject headings,
    titles and names

18
Authority Files
  • Needed for efficient cataloging and searching in
    library networks
  • Reduce effort involved in entering headings
  • Avoid duplication of work
  • Improve the quality of catalogs

19
Four Functions of Authority Files
  • Authority function support consistency of
    headings
  • Finding function provide links from variants and
    other authorized headings
  • Information function show usage and scope of
    headings
  • Maintenance function support manual and
    automatic error detection and correction

20
Advantages of Authority Control
  • Collecting, recording and maintaining
    authoritative forms of headings
  • Linking variant forms of headings together
  • Providing consistency and verification upon
    creating bibliographic records
  • Automatic verification
  • Global change and correction
  • Shared authority files
  • Linkage between authority files and bibliographic
    records

21
Problems with Corporate Names
  • Name change
  • Names in different languages
  • Variant names
  • Brief form of names
  • Subordinate and related bodies

22
Problems with Subject Terms
  • Specific vs. general
  • Synonyms
  • Word form
  • Singular or plural
  • Homographs
  • Direct vs. Inverted
  • Popular vs Technical
  • Cats or Siamese cats
  • Attire, Dress, Clothing
  • Armament, Disarmament
  • Apple or Apples
  • Bridge, Plant, Mercury
  • Surgery, Plastic or Plastic surgery
  • Stamp collecting or Philately

23
AUTHORITY CONTROL AND PUBLIC SERVICES
  • Increase quality of catalog
  • Catalog searching with syndetic structure
  • Answer some reference questions
  • Search across various catalogs using authorized
    form once determined

24
Cooperative Authority Control
  • Name Authority COoperative project (NACO)
  • NACO funnel projects
  • Subject Authority COoperative (SACO) project
  • SACO funnel projects

25
Recent History of Authority Control 1980s
  • 1979 - reasons for no automated authority control
  • high cost
  • librarians only remotely interested
  • 1982 - vendors - what control?
  • 1983 - vendors - heres what were developing

26
Recent History of Authority Control 1980s (cont.)
  • 1985 - authority and bibliographic files
  • non-integrated
  • partially integrated
  • wholly integrated
  • 1989 - research review
  • major concern - amount of disk space
  • related concern - slow response time

27
Recent History of Authority Control 1980s (cont.)
  • Research questions
  • How much authority control needed?
  • Really necessary to have unique access points for
    names?
  • What kind of references needed?
  • Could works be under authority control?
  • Could subject heading authority control be
    automated?
  • Local authority files necessary?

28
Recent History of Authority Control 1990s
  • Technology problems resolved
  • New research questions
  • effect of authority control or lack of it on
    retrieval
  • matching algorithms for personal names
  • matching algorithms for corporate names
  • authority control of works
  • cost of authority work

29
Recent History of Authority Control 1990s (cont.)
  • New research questions (cont.)
  • subject authority control
  • content of headings
  • subject searching
  • user understanding of subject strings
  • form/genre access
  • retrospective application of new subject headings
  • Development of WWW, browsers, search engines

30
Future of Authority Control
  • International access control
  • 1961 Paris Principles
  • Universal Bibliographic Control (UBC)
  • International authority file
  • linked via record id numbers
  • Z39.50 protocols
  • UNIMARC authority records

31
Future of Authority Control (cont.)
  • Subject access to Internet resources
  • SAC Subcommittee (metadata subjects) recommends
  • simple and easy to apply and comprehend
  • intuitive
  • scalable for implementation from the simplest to
    the most sophisticated
  • logical
  • appropriate to the specific subject domain of
    implementation

32
Future of Authority Control (cont.)
  • Subject access to Internet resources (cont.)
  • WorldCat Records in Comparison with LCSH
    Authority Records
  • 3 total subject string match
  • 26 used by LC, but not established because of
    free-floating subdivisions, geographic
    subdivisions, etc.
  • 71 not used by LC and not established

33
Future of Authority Control (cont.)
  • Subject access to Internet materials (cont.)
  • FAST (Faceted Application of Subject Terminology)
  • based on LCSH
  • designed to be used in online environments by
    people with minimal training and experience
  • still a research project hope to implement in
    CORC

34
Future of Authority Control (cont.)
  • Subject access to Internet materials (cont.)
  • FAST (cont.)
  • Eight facets
  • Topical
  • Geographic
  • Form
  • Period
  • Personal names
  • Corporate names
  • Conference/Meeting names
  • Uniform titles

35
Subject Access to Internet Materials (cont.)
  • FAST theoretical precision problem
  • LCSH
  • Gold mines and mining z California
  • Silver mines and mining z Colorado
  • FAST
  • Gold mines and mining
  • Silver mines and mining
  • California
  • Colorado

36
Subject Access to Internet Materials (cont.)
  • FAST rules (in trial)
  • Topical facet to consist of LC main topical
    headings, topical subdivisions, period
    subdivisions that have topical aspects
  • Geographic facet to establish names in indirect
    order Massachusetts--Worcester, not Worcester
    (Mass.)
  • Form facet to be the subdivisions now being coded
    v
  • Chronological facet to reflect the actual time
    period coverage for the resource

37
How to do Authority Control
  • In-house
  • pre cataloging
  • post-cataloging
  • Vendor supplied authority control
  • RFP
  • Specs
  • Exceptions report follow-up

38
In-house Authority Control
  • Pre-cataloging
  • Automatic verification
  • Post-cataloging
  • Headings reports
  • Participation in national cataloging programs

39
Planning for Vendor Authority Control
  • Determine records to be processed and records not
    to be processed
  • Determine headings to be processed and headings
    not to be processed
  • Rationalize local policy to eliminate practices
    that differ from national standards/LC practices

40
Products Provided by Vended Authority Control
  • Corrected headings
  • Authority records
  • Reports

41
Options for Vended Authority Control
  • Correction transaction records or replacement
    bibliographic records
  • One-time processing or ongoing processing
  • Machine-only processing or processing with human
    review
  • Off-the-shelf processing or customized processing

42
Implementing Vended Authority Control
  • Prepare detailed project specifications
  • Develop and test software changes
  • Establish quality assurance procedures
  • Re-design cataloging and other workflows
  • Create supporting documentation
  • Determine changes in staffing requirements

43
Authority Control is Not Magic
  • Authority control is not achieved without the
    requisite authority work carried out by
    catalogers
  • Without authority control, a file cannot be
    considered a catalog

44
Online Catalog Maintenance
  • Error reports
  • Heading reports
  • Authority control
  • Transfers
  • Withdrawals
  • Added copies/added volumes

45
Error Reports
  • Types
  • Duplicate call numbers
  • Duplicate records
  • First time use headings
  • Invalid headings
  • Blind references

46
Error Reports (cont.)
  • Sources
  • Patrons
  • Library staff
  • System generated
  • Correct errors
  • Resolves conflicts

47
Error Reports (cont.)
  • Conform to changes
  • Change of name of corporations University
    Microfilms International to UMI
  • Change of name of country Zanzibar to Tanzania
  • Change of current terminology Negroes to
    Afro-Americans to African Americans
    Underdeveloped countries to Developing countries

48
Retrospective Conversion (Recon)
  • Recon is the process of converting shelflist
    cards into a machine-readable format based on the
    MARC 21 format
  • Each shelflist card is matched against a vendors
    MARC database(s). Matches are done by ISBN, LCCN,
    then author, author/title, or title, etc.
  • Enhancements may be made to matched MARC records,
    as specified by the library.
  • Matches MARC records are saved onto disks/other
    media, or transferred electronically over the Web
    (via FTP).
  • Non-matches are either keyed-in by an operator,
    or sent back to the library for in-house
    conversion.

49
Recon Specifications
  • Develop specifications for Recon. The vendor may
    send you a form to specify how certain fields in
    the MARC records should appear. In this case, you
    complete the form and place a check mark for the
    option you prefer

50
Who Does the Recon?
  • Vendor (outsourcing)
  • Process
  • Advantages
  • Disadvantages
  • Choosing a vendor
  • In-House by staff. There are many options
  • CD-ROM
  • Fee-based Web services
  • http//www.itsmarc.com (TLC ITS.MARC)
  • http//www.booksystems.com (EZCat/Pro)
  • LibraryCom (http//www.librarycom.com). Provided
    by CASPR Library Systems
  • SUNLINK (http//www.sunlink.ucf.edu)

51
Who Does the Recon?
  • In-House (contd.)
  • Advantages
  • Disadvantages
  • Issues in using MARC records from free Web-based
    services
  • Combined conversion process
  • Vendor
  • In-house
  • Advantages
  • Disadvantages

52
What Recon Method to Use?
  • Decision depends on
  • the type of library and its collection size
  • the qualifications of existing library staff
  • the timeline for completing the automation
    project
  • the cost analysis you perform for various types
    of recon methods

53
Barcoding the Collection
  • Types of barcodes
  • Smart barcodes
  • Dumb barcodes
  • Specifications for barcodes
  • Your recon specifications should have
    specifications for smart and dumb barcodes
  • Smart barcodes are generated during the
    conversion process
  • After a MARC record is found for an item, a smart
    barcode is linked to the item.

54
Specifications for Barcodes
  • Specifications for smart barcodes should include
  • compatibility with the application software
  • compliance with barcode standard (symbology)
  • the type indicator (e.g., 1 for materials)
  • name of the library, item title, and item call
    number
  • barcodes should be arranged by call number
  • one barcode is needed for each item in a multiple
    copy set
  • one barcode is needed for each volume in a
    multi-volume set
  • you also may want to get two identical barcodes
    per each item

55
Barcoding the Collection
  • Pre-requisite
  • attempt to close the library
  • recall checked-out items
  • divide shelves into sections
  • Use the smart barcodes first.
  • Match each call number on the barcode with that
    on the shelf before affixing the barcode
  • Placement of barcodes
  • Print materials
  • Considerations
  • Placement
  • Non-print materials
  • Considerations
  • Placement

56
More on Preparing the Collection for Automation
  • Weeding
  • Weed the collection based on your librarys
    weeding criteria
  • Withdraw the shelflist cards for the weeded items
    so that they will not be converted and paid for.
  • Weeding is essential before sending the shelflist
    for retrospective conversion (recon). This is
    because the vendor charges for converting every
    card in the shelflist into a MARC 21 format.

57
More on Preparing the Collection for Automation
  • Inventory
  • Inventory is performed to identify items for
    which no shelflist cards exist and to identify
    shelflist cards for which materials are missing
    or lost.
  • Decide on the materials to be converted
  • Typically, all materials destined for recon must
    have shelflist cards.

58
More on Preparing the Collection for Automation
  • Shelflist Analysis
  • Shelflist analysis is performed to examine the
    completeness and accuracy of the shelflist.
  • The more complete and accurate the information on
    the cards is, the higher the probability is for
    finding matches in MARC databases.
  • Shelflist analysis ensures uniformity and
    consistency.
  • Make sure each shelflist card contains this
    information
  • accurate bibliographic information (author,
    title, publication information, etc.)
  • a call number and a standard prefix (R for
    reference or Ref for reference, etc.)
  • no. of copies of an item
  • no. of volumes in an item
  • ISBN and LCCN

59
Online Catalog/Database Management
  • Staffing
  • Separate Unit

60
Reclassification
  • Dewey to LC
  • Dewey Phoenix
  • LC changes
  • Split collection?

61
Catalogs past, present, and future
  • Printed lists
  • Card catalogs
  • OPACs
  • Web portals
  • the Dream Machine
  • the Scholars Workstation
  • the Data Web
  • Virtual Workspaces

62
Beyond Bibliographic Data
  • Patron databases
  • Circulation systems
  • Acquisition systems
  • Licensing agreements
  • Reports other derivatives
  • Virtual Workspaces tool kits

63
Whats a Catalog For?
  • IFLA Functional requirements of bibliographic
    records 4 user needs
  • find, identify, select, obtain
  • Erik Juls 5th need
  • use
  • Metadata supports productive workspaces
  • Teach, research, publish, write grants

64
The Online Catalog
  • Present traditional catalog
  • Provides access to locally owned materials
  • Provides access to artifactual materials
    (objects books, videos, etc.)
  • Provides access in the forms of pointers to
    locations
  • Is structured as a stand-alone bibliographic tool
  • Provides remote access
  • Monitors transactions

65
The Online Catalog (cont.)
  • Present traditional catalog provides (cont.)
  • Powerful searching capacities including keyword
    searches and Boolean operators
  • Links to circulation system with detailed
    holdings and status information
  • Integrated authority control system with
    cross-references
  • Information on titles that are on-order or
    in-process

66
The Online Catalog (cont.)
  • The present Web-based catalog additionally
  • Provides access to materials local and elsewhere,
    owned and not owned
  • Provides access to electronic information
  • Provides electronic information itself, not only
    locations (and from both free and fee-based
    sources

67
The Online Catalog (cont.)
  • The next catalog additionally
  • Will be presented as a tool integrated with other
    workstation tools
  • Will provide a variety of tools in addition to
    the bibliographic function
  • Will provide searching through classification
    schedules (controlled vocabulary)

68
Whats a Portal
  • Help users easily discover what resources are
    available
  • Help users discover what resources are most
    useful for their topics
  • Provide cross-collection searching
  • Integrate and manage search results
  • Link search results to full text when possible
    to services if not
  • Authenticate and authorize or block user access

69
Whats a Portal
  • Ability to query two distinct streams of
    electronic resources and databases
  • Universal stream of unrestricted resources from
    web sites targeted for quality relevance
  • Local stream of information, access to which is
    restricted to local users by license or other
    agreement
  • Systems which gather a variety of useful
    information resources into a single, one stop
    web page, helping the users to avoid being
    overwhelmed by infoglut or feeling lost on the
    web

70
Useful information resources
  • Local catalog
  • Other library catalogs
  • Locally licensed full-text and abstracting/indexin
    g databases
  • Public domain abstracting/indexing databases
  • Finding aids for special collections and archives
  • Locally digitized resources
  • Vetted Web sites

71
Why are we creating portals?
  • Commercial search engines are deficient because
  • what they search,
  • how they search, and
  • the fact that they only search
  • (for that matter, so are library catalogs)
  • Why is that?
  • Quality of information
  • Brute force application of keyword searching
    algorithms
  • Too many keywords
  • Too many ways of loading up documents with
    spurious keywords
  • Too much emphasis on simple counting when
    carrying out relevance routines

72
Resource discovery acrossheterogeneous objects
  • You pays your money and you takes your chances
  • Metadata repository
  • Extension of the idea of a union catalog
  • Combines metadata from many collections
  • Harvested (OAI protocol) or directly contributed
  • Example National Science Digital Library (NSDL)
  • Federated searching
  • New products from ILS vendors (generally
    speaking)
  • Licensed resources (generally speaking)

73
Catalog as Portal to the Internet (Thomas)
  • Reduce the amount of time devoted to cataloging
    of books and reallocate the time of our
    bibliographic control experts to provide access
    to other resources, especially electronic
    resources
  • Increase functionality of the library
    portal/catalog
  • Increase scope and coverage of materials
  • Ensure timely access to publications
  • Increase the level of access from citation to
    full-text
  • Incorporate features such as reference linking,
    recommended titles, relevance ranking,
    customization and personalization that make
    portals so captivating

74
Catalog as Portal to the Internet (cont.)
  • Libraries shouldnt go it alone. Libraries should
  • Collaborate with other libraries in a coordinated
    plan for the acquisition, creation of metadata,
    access, and preservation of materials available
    through portals
  • Define a clear path from the local library portal
    to the larger scholars portal
  • Partner with developers of portals and search
    engines to share experience in a constructive
    way, drawing on the best each has to contribute
    to effective access to information

75
Catalog as Portal to the Internet (cont.)
  • Dont hide our light under a bushel. Libraries
    should
  • Advertise the features of the discovery database,
    a hybrid combining some of the best features of
    the catalog and the portal
  • Quantify the value of labor-saving features of
    the portal/catalog for the community of users and
    for those administering the organizations that
    subsidize them and stand to benefit from them

76
What Do Our Users Want?
  • Our users do more work and study away from the
    library
  • Loyal to the library, but library is only one
    element in a complex information structure
  • Print still important, but many users rely
    exclusively on electronic materials
  • Seamless linking from one information object to
    another is expected

77
What Do Libraries Want?
  • Share the wealth of their resources with their
  • communities
  • Remain a vital resource to their communities
  • Leverage investments in their collections
  • Make the best use of limited budgets
  • Be highly visible on the Web
  • Harness new technologies
  • Successfully compete with other information
  • services
  • Stay funded (and fundable)

78
Toward a New LibraryInformation Space
  • Objectives
  • Unite print, digital and e-collections
  • Integrate access to all library resources
  • Simplify digital and resource management
  • (lower costs AND improve service)
  • Methods and tools
  • Web-accessible lists
  • New role for catalogs
  • Portals
  • Reference linking (OpenURL)
  • E-resource management systems

79
Virtues of the Catalog, and Other Virtues
  • Catalogs
  • Serve a defined community (focused)
  • Access to structured, quality collection
    (credible)
  • Consistency of descriptions (predictable)
  • Preserved and maintained (dependable)
  • Internet portals tend to lack catalogs virtues,
    but
  • Prolific and current search results
  • Better search engines and ranked displays
  • Lots of full text
  • Seamless linking from object to object
  • More audio and images
  • Convenient
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