Tables of Contents: Opportunities for IShare Libraries

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Tables of Contents Opportunities for I-Share
Libraries

• R. Conrad Winke
• Chew Chiat Naun
• ICAT Forum, Columbia College, Chicago
• 20 March 2007

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Benefits for the inclusion of Tables of Contents
in MARC records

• Users want the fullest catalog records possible
  (think Amazon)
• Tables of contents provide added subject-rich
  words and authors names, which enhances recall

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Numbers of Tables of Contents Available

• Over 90 of books published in English have
  usable tables of contents (though not all are
  available in MARC)
• These add on average 68 words to the MARC record,
  some of which are subject-rich and some of which
  are authors names

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Tables of Contents Made Available through the
Library of Congress

• Two bibliographic enrichment programs currently
  underway
• dTOC (30,000 records)
• ONIX TOC (50,000 records)
• As of June 2005

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dTOC in Action
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More dTOC in Action
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Tables of Contents in MARC Records

• Two locations for this data
• 505 field for data entered by you or other member
  libraries in OCLC
• 856 (Electronic Location and Access) field in bib
  records, generally for dTOC and ONIX TOC
  information

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505 Field Tagging

• Two types of 505 encoding, basic and enhanced.
  Text is entered according to AACR2 Rules 1.7B18,
  2.7B18, etc. and relevant LC Rule
  Interpretations.
• Indicator 1 0 complete contents
• Indicator 1 1 incomplete contents
• Indicator 1 2 partial contents
• Indicator 2 blank basic encoding
• Indicator 2 0 enhanced encoding

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505 Field Tagging contd

• Subfield a basic formatted contents note
• Example
• 505 1_ a v. 1. Humanities / Joe Jones v. 2.
  Sciences / Susan Smith -- v. 3. Social sciences
  / Jane Q. Doe.

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505 Field Tagging contd

• Subfield g enhanced formatted miscellaneous
  contents information
• Subfield r enhanced formatted contents statement
  of responsibility information
• Subfield t enhanced formatted contents title
  information
• Enhanced version of above example
• 505 10 g v. 1. t Humanities / r Joe Jones g
  v. 2. t Sciences / r Susan Smith -- g v. 3.
  t Social sciences / r Jane Q. Doe.

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Searching TOCs

• Inconsistent depends on type of TOC
• Not searchable if only linked via 856 (or 505 u,
  etc.)
• Keyword-anywhere searchable if basic or enhanced
  505
• Title searchable if enhanced 505 (t)
• However, authors in enhanced 505 (r) are not
  included in author search

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Enhanced TOCs leading article problem

• 505 00 t Jet phenomena / r M. Jacob -- t An
  accelerator design study / r R.R. Wilson -- t
  Lectures in accelerator theory / r M. Month.
• No coding available for leading articles
• ICAT recommendationhttp//carli.illinois.edu/I-S
  hare/docs/060113indenh.html
• 740 02 a Accelerator design study

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856 Field Tagging

• Many indicators and subfields. For LCs table of
  contents programs, the important ones are
• Indicator 1 4 HTTP
• Indicator 2 1 link is for an electronic
  version of what is described in the record
• Indicator 2 2 link is for a resource related
  to what is described in the record
• Subfield u the URL itself
• Subfield 3 the type of material specified

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Sample display of dTOC and ONIX TOCs

• Indicators do not distinguish between TOCs and
  full text
• Use of 3 highly recommended to show what the
  links point to

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856 Fields in Action (from the example above)

• 856 42 3 Publisher description u
  http//www.loc.gov/catdir/enhancements/fy0665/2006
  045657-d.html
• 856 41 3 Sample text u http//www.loc.gov/catdir
  /enhancements/fy0668/2006045657-s.html
• 856 41 3 Table of contents only u
  http//www.loc.gov/catdir/enhancements/fy0668/2006
  045657-t.html

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TOCs in Universal Catalog

• Not every library gets a TOC for a given record
• Not every library gets the TOC at the same time
• How do we ensure that TOCs are not lost when
  records are overlaid in UC?
• CARLI sampling to see how often this problem
  arises

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Sources for TOCs

• Bib Notification
• Includes LC/ONIX TOCs
• High percentage of bib notification records
  include TOCs
• RichCat
• Cooperative TOC project (still in pilot phase)
• Uses OCR to create TOCs

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Sources for TOCs contd

• DIY TOCs
• Anyone can add tables of contents to an OCLC
  master record
• Scanned TOCs (UIUC experiment http//tinyurl.com/
  28s21r)
• Vendors
• Blackwells
• Baker Taylor
• Syndetic Solutions

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Syndetic Solutions
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Syndetic Solutions contd
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Syndetic Solutions contd

• CARLI has recommended purchase for UC
• Member libraries buy their own
• Examples from http//faculty.swosu.edu/jonathan.w
  oltz/enduser/2005/session23presentation.ppt
• Other enhanced content available (cover images,
  sample text, reviews, etc.)
• Uses OPAC configuration link (not 856) based on
  ISBN

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Syndetic Solutions pros and cons

• No maintenance issues
• No UC overlay issues
• Only have access to the content as long as you
  license it
• TOCs not searchable
• Implementation issues
• Multiple ISBNs result in multiple links
• Other issues (see SWOSU link)

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Questions, comments?