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Rose, by any other name:

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Incorrect authority attribution eg Daunton M. J. (Martin James), 1949- was ... Daunton, M.J. (Martin J.), 1949- even though the LC authority record does not ... – PowerPoint PPT presentation

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Title: Rose, by any other name:


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Helen WilliamsAssistant Librarian, Cataloguing
  • Rose, by any other name
  • A workshop on name authority control
  • CILIP
  • Oct 2009

3
(and the impact on current authority control
procedures)
Retrospective authority control
4
Background
  • LSE library founded 1896
  • First subject catalogues appeared 1931-32
  • Library houses over 4 million printed volumes
    (including journals, historical pamphlets,
    archive materials).
  • Authority control procedures had been varied over
    the years
  • Result library catalogue with a number of
    variant headings

5
Initial considerations
  • Authority control group convened in 2006
  • Assessed user needs
  • Created authority control guidelines for staff
    covering names, corporate names, subjects and
    series
  • Analysed current position
  • And possible options for improvement

6
Detailed considerations
  • In-house
  • Estimated at 21,000 person hours based on an
    average of 2 minutes to check each heading
    equivalent of one person working on the project
    for 12 years!
  • Outsourcing
  • Export entire catalogue to external company to do
    one off check of names, corporate names, subjects
    and series. Headings are checked, validated
    against LC, alternations made, file returned and
    loaded back.
  • Recommend regular checks of new records after
    project and accompanying error reports to assess
    future possibilities for in-house work.

7
Tendering process (1)
  • Outlined background and scope
  • Requirements for project
  • Responses required from tenderers

8
Tendering process (2)
  • Tenders were received from 3 companies
  • Considered by working group
  • Project awarded to Marcive

9
Preparation for exporting file to Marcive
  • Detailed specifications completed in-house to
    send to Marcive
  • Liaison with Marcive
  • In-house preparation and planning

10
Exporting and test phase
  • May 2007 exported approximately one million
    bibliographic records to Marcive
  • 2 weeks later received test file of 10,000
    records as a sample for checking.
  • Checked for corrected indicators/punctuation,
    1XX/7XX, 440/8XX, 6XX fields changed to correct
    authorities, 245 GMDs correctly replaced,
    abbreviations corrected, and that no general
    corruption of data had taken place

11
Queries arising from sample checking
  • We checked the test sample so thoroughly that we
    came up with a number of queries to be submitted
    to Marcive.
  • Basic spellings not corrected eg Germay to
    Germany
  • Names not recognised for correction where no
    space has been entered before the brackets eg
    Marks Spencer (Firm) changed to Marks Spencer
    Plc, but Marks Spencer(Firm) not changed.
  • Department not changed to Dept. on names where
    that would then correct the authority. Eg
    Department of Employment to Dept. of Employment.
  • Headings which needed a qualifier added and it
    was not eg Fabian Society needed (Great Britain)
    to validate
  • Incorrect authority attribution eg Daunton M. J.
    (Martin James), 1949- was changed to Daunton,
    M.J. (Martin J.), 1949- even though the LC
    authority record does not include 1949.

12
Marcive response
  • Excellent response in terms of customer service
  • Quick and detailed
  • But it highlighted that we had higher
    expectations of the automated process than was
    actually achievable
  • How we dealt with this

13
Return of cleaned data
  • A few weeks after checking the data and providing
    Marcive with written confirmation to go ahead we
    received 21 bibliographic files which comprised
    our entire catalogue and 10 files of authority
    records.
  • IT dept had intended to load all files to the
    test server first, but took 7.5-9 hours per file
    and was therefore impractical.
  • Decided to check 2 bib files and 1 authority file
    on test server but !

14
Problems
  • These projects are never as straight forward as
    one hopes!
  • The test server indexes suffered under the strain
    of so much data and we had to wait for Ex Libris
    to carry out a regeneration of the indexes.
  • Then we had a problem with Russian diactritics
    supplied by Marcive not being accepted by the
    character set validation on Voyager.
  • Followed by a problem re-loading and re-indexing
    data in the live server. Even changing our
    in-house protocols the process still took 143
    hours!

15
Ongoing services
  • January 2008 and time to think about the ongoing
    services Marcive were providing for us.
  • Overnight authorities service and
  • Multimatches report
  • Unrecognised main headings report
  • Notification service
  • Global headings change

16
What is Global Headings Change?
  • When a change is made to a 1XX field in an
    authority record then the change is sent to the
    GHC queue so that by using a particular command
    you can set off a database clean up so that all
    related bib records are also corrected.
  • Overnight authorities service and
  • Multimatches report
  • Unrecognised main headings report
  • Notification service
  • Global headings change

17
What is Global Headings Change?
  • When a change is made to a 1XX field in an
    authority record then the change is sent to the
    GHC queue so that by using a particular command
    you can set off a database clean up so that all
    related bib records are also corrected.
  • Overnight authorities service and
  • Multimatches report
  • Unrecognised main headings report
  • Notification service
  • Global headings change

18
In-house considerations
  • With these ongoing service we considered whether
    we no longer needed our stringent in-house
    authority validation checks at the cataloguing
    stage.
  • On reflection we were confident that existing
    authority control guidelines needed to continue

19
Follow-up to initial project
  • In addition to embedding the ongoing services
    into our in-house work we needed to do some work
    to tidy up the headings Marcive had been unable
    to change.
  • Scoped out work and employed a temp for 22 weeks
    working 4 days a week.

20
Project work (1)
  • Multiple reports returned from Marcive so had to
    establish order of priority which we based on
    user satisfaction levels.
  • High unidentified subject headings and
    unrecognised geographic main headings, followed
    by in-house report of wrong or missing indicators

21
Project work (2)
  • Medium priority Personal names, corporate
    names, multimatches, geographic subdivisions
  • Low priority Uniform titles, series headings,
    meeting names.

22
Work completed
  • Our temp spent around 630 hours working on the
    project and completed 37,514 records
  • Approx one record per minute
  • Estimate an average of 2 headings needed changing
    per record, so approx 75,000 headings were
    corrected.
  • .

23
Work remaining
  • Remaining personal names
  • Corporate names
  • Multimatches (all fields)
  • Remaining geographic subdivisions
  • Series names
  • Meeting names
  • But more complex to deal with and would show
    lesser return for the time and cost involved.

24
Pros and cons of more in-house work
  • Advantages to completing the work accurate
    catalogue, minimal errors or confusing entries
  • But, in reality, impossible for an institution
    with such an old catalogue to be completely free
    of errors.
  • Sample testing shows that authority records are
    not available for over 90 of the remaining
    headings.
  • Total time taken to complete medium priority
    reports alone would be 15,437 hours!
  • Remaining headings are not considered high
    priority to aid user retrieval

25
Thanks
  • Due to those in the Bib Services team who took
    part in testing data
  • The senior library assistant for overseeing the
    temp
  • The support of our IT dept our IT contact has a
    cataloguing background so had an invaluable
    understanding of both the technical and practical
    aspects of the project.

26
The results
  • Our catalogue is more consistent and has less
    errors
  • In-house services and ongoing Marcive services
    ensure that the benefits of this work are
    maintained
  • The project has increased the profile of
    authority control in Bib Services
  • Library catalogue continues to get a high score
    on student satisfaction survey
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