Classification%20Web

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Classification Web

• A tutorial based on the LC Class Web Quick Start
  Tutorial UW Workflow

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Overview

1. Introduction to Class Web
2. Browsing and navigating
3. Enhanced Browser
4. Hierarchy Browser (brief)
5. Searching for class numbers
6. Subject heading correlations
7. Searching for subject headings
8. Dewey correlations (brief)

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Why use Classification Web?

• At UW we use Classification Web to
• Verify the correctness of the classification
  number in derived records
• Verify the correctness of subject headings,
  especially the placement of the geographic
  subdivision (can also be done in TRELLIS)
• At any time if you have questions about a Class
  , please check with me or with Bethlyn

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Accessing Classification Web

• You can connect to Class Web from the Cataloguing
  Dept. web site or bookmark the site
  http//classificationweb.net
• You will need to provide the user name and
  password
• Username LCCLAS1
• Password
• It tends to remember the username once youve
  used it just start typing LC and the rest should
  pop up

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A. Introduction

• Classification Web
• Allows you to browse or search LCC
• Is updated weekly
• Combines the schedules and tables to calculate
  numbers for you
• Associates classification numbers with
  corresponding subject headings
• Includes full-text LCSH
• Is easy to use!

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B. Browsing Navigation

1. Main Menu
2. Navigation Buttons Arrows
3. Hot links to Confer notes and See refs
4. Hot links to tables
5. Special functions
6. Brackets Parentheses

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Main Menu
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Navigation buttons arrows

• (Keyboard shortcuts can use TAB and ENTER to
  navigate)
• At the top of the browse screen you will see the
  navigation bar

Just type in your call number and then
go! e.g. search TR647 You can page up and
down using the arrow buttons
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Hot Links to Confer See Ref.

• LCC includes confer notes (related numbers) and
  see references to valid numbers.
• Class Web provides hot links which will take you
  directly to the referenced number
• e.g. search GV854.9
• ?if you see a confer note and think the other
  class number is better, please ask!

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Hot Links to Tables

• The standard classification browser does not
  calculate tables for you, but it does provide you
  with a link that takes you directly to the
  relevant table.
• e.g. search KF2971
• The information at the top of the screen
  indicates if you are in a table Table ID

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Special function links

• Every caption in LCC is followed by a group of
  linked letters in brackets (vary depending what
  you are looking at)
• e.g. H F B L S N
• H display classification hierarchy
• R display classification record

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Special function links B

• B display bibliographic records with this
  number
• Used to browse LC and TRELLIS shelflists
• Can confirm the correctness of that number for
  the topic of your item
• Used for shelflisting

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Special function links cont.

• L display LC subject headings for this number
  (if the class number appears in a subject
  authority)
• S display subject correlations for this number
  (we will discuss later)
• C Display in classification browser
• T Display secondary table
• N Display local notes (not used at UW)

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Brackets Parentheses

• In order to use LCC, you need to understand the
  syntax
• (LA2010-2014) indicates obsolete numbers
• ltKE25gt indicates optional number not used by LC
  for its collections
• QL737.C42-.C427 indicates a span of numbers in
  search results
• If you encounter the first 2 situations, bring
  the item to me to assign a new number.

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C. Enhanced Browser

• You can find the enhanced browser at the bottom
  of the menu (in the centre)
• Why use the enhanced browser rather than the
  default standard browser?
• It combines the regular schedule with the tables
  to calculate numbers for you
• This means you are more likely to find the number
  you have searched
• e.g. Search the number KF560 and look at the
  range KF566-570

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Enhanced Browser cont.

• If searching a number that is not in the
  schedules, Class Web will calculate and display
  the number
• Compare KF566.4 in Standard Browser vs. Enhanced
  Browser the Standard Browser simply takes you to
  the nearest number in the schedules.
• KF566.4 is in the range KF566-570, numbers which
  are built based on a table you would note find
  this number in the regular classification
  schedules
• E.g. NA725 (art numbers are often built on tables)

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D. Hierarchy Browser

• You can find the hierarchy browser at the bottom
  of the menu (on the right)
• This browser is used more by those who are
  assigning classification numbers because
• It combines the regular schedule with the tables
  to calculate numbers for you
• It allows you to browse large categories of
  numbers, similar to using a detailed table of
  contents
• It allows you to move up in the hierarchy easily
  if you think your number is too specific
• E.g. search t

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E. Searching

• This function is generally used when assigning
  class numbers, but there are a few scenarios in
  which it may be useful for the cataloguing
  associates
• Call number in your record has a typo
• Call number in your record is just a partial
  number
• Literary authors with large number ranges

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Display search options

• Display options
• Number of records per page
• Display (defaults to caption)
• Prefer to choose entire hierarchy
• Search schedules, tables or both
• Search options
• Generally only need to look at the search options
  if you receive too many results

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Type of query

• Search
• Left-match search on your search term
• Automatically truncates
• Browse
• Left-match search on your search term, in context
  alphabetically with other possible search terms
• E.g. search Titanic
• RESET when you want a new search

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Category of search

• Caption
• Keyword
• Index term
• Caption or index term
• Classification number

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Searching example 1

• You are cataloguing an introduction to
  Astrophysics. It has been assigned the number
  QB641
• When you browse this number, it means
  MarsGeneral works
• You make a quick search for astrophysics to see
  if there is just a typo (otherwise bring to me)
• Search caption astrophysics class QB
• Will see that QB461 is general works of
  astrophysics the cataloguer simply reversed the
  numbers

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Searching example 2

• You are cataloguing a book and it only has a
  partial call number in the 050 a KF25
• When you browse this classification number you
  discover there is a long list of cutters by
  committee. Perhaps it would be quicker just to
  search for the committee!
• Search class KF keywordtechnology and
  national security name of the committee
• Make sure you include both schedules and tables
  in your search
• Table result for this committee is .E274
• Final number is KF25.E274 (plus year of the
  hearing)

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Searching Example 3

• You are cataloguing a novel by Charles Dickens.
  This is an author with a large range
  PR4550-4598.
• To get directly to his separate works you may
  want to search
• Keyword Dickens caption separate works class
  PR
• Brings you directly to PR4555-PR4572, the list
  of separate works

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F. Subject heading Class number correlations

• Class Web correlates subject headings and class
  numbers by displaying up to ten subjects that are
  closely associated with the number in the Library
  of Congress catalogue
• Aids in reinforcing the correctness of a class
  number or a subject heading in your record
• Watch out for old classification rules!
  Correlations are based on all records in the LC
  catalogue. Correlations are there only as a guide.

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Subject heading Class number correlations

• Two ways to access subject correlations
• From the classification browser using the special
  function S
• E.g. browse PN 4778 and click on the S function
• From the main menu
• Search by classification number or by subject
  heading
• e.g. PN 4778
• e.g. Halloween

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G. Searching Subject Headings

• Classification Web contains the full text of the
  Library of Congress Subject Headings (LCSH)
• Displayed in thesaurus style with direct links to
  broader, narrower and related terms (may be
  easier to read than Voyager authorities)
• Can use this to verify if headings or
  subdivisions are valid if headings or
  subdivisions can be subdivided geographically if
  there is a corresponding classification number

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Subject headings in TRELLIS

• Subject headings are also available in TRELLIS
  which is updated weekly
• E.g. Telecommunication
• Headings can be checked in TRELLIS during the
  validation process.
• Can use Class Web if find it an easier display
• E.g. bib 794601, we can check the placement of
  the geographic subdivision by checking if the
  topical subdivisions can be subdivided
  geographically
• Look for the 008 code i

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Checking Headings in TRELLIS
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Checking Headings in TRELLIS
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Checking Headings in TRELLIS

• To see if the subdivision is (May Subd Geog) look
  for the i in the 008

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Type of query

• Search
• Left-match with automatic truncation
• Browse
• Left-match with automatic truncation
• Takes you to an alphabetical list (just like
  looking in the books!)
• Compare Search vs. Browse of taxation
• If want keyword search, need to use the keyword
  category.

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Category of search

• Structured subject heading
• e.g. taxation--law and legislation
• Unstructured subject heading
• Structured or un-structured free-floating
  subdivision
• E.g. environmental aspects, diaries
• Keyword
• Classification number (only those found in the
  053 tag of the MARC authority)

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CSH to LCSH conversion

• You can use CSH on the Web in conjunction with
  Class Web to provide LC subject headings when
  your record only has Canadian ones
• Search the Canadian heading in CSH (find link on
  Cat. Dept. web site)
• http//www.collectionscanada.ca/csh-bin/search/l0
  
• Note the LCSH equivalent
• Verify the LCSH equivalent in Class Web subject
  headings or in TRELLIS
• E.g. Huron Indians
• LCSH Wyandot Indians

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H. Dewey Correlations

• This section is not generally used by cataloguing
  associates it aids in assigning class numbers
• Correlations are derived from LC bibliographic
  records in which LC has assigned both a Dewey
  number and LCC
• Useful if your record has a Dewey number but no
  LCC
• e.g. search 362.0424

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• Questions?????