Transcript Classification Web - University of Waterloo

Classification Web
A tutorial based on the LC Class Web
“Quick Start Tutorial” & UW Workflow
Overview
A. Introduction to Class Web
B. Browsing and navigating
C. Enhanced Browser
D. Hierarchy Browser (brief)
E. Searching for class numbers
Subject heading correlations
G. Searching for subject headings
H. Dewey correlations (brief)
F.
Why use Classification Web?
 At UW we use Classification Web to:
1.
2.
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
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 you’ve used
it; just start typing LC and the rest should pop up
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!
B. Browsing & Navigation
I.
II.
III.
IV.
V.
VI.
Main Menu
Navigation Buttons & Arrows
Hot links to Confer notes and See refs
Hot links to tables
Special functions
Brackets & Parentheses
Main Menu
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
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!
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 #
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
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
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)
Brackets & Parentheses
 In order to use LCC, you need to understand
the syntax:



(LA2010-2014) indicates obsolete numbers
<KE25> 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.
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
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)
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”
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:
1.
2.
3.
Call number in your record has a typo
Call number in your record is just a partial
number
Literary authors with large number ranges
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
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
Category of search
 Caption
 Keyword
 Index term
 Caption or index term
 Classification number
Searching: example 1
 You are cataloguing an introduction to Astrophysics. It
has been assigned the number: QB641
 When you browse this number, it means “Mars—
General 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
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; keyword=technology 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)
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
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.
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
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
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”
Checking Headings in TRELLIS
Checking Headings in TRELLIS
Checking Headings in TRELLIS
To see if the subdivision is (May Subd Geog) look for the “i” in the 008:
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.
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)
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/l=0
Note the LCSH equivalent
Verify the LCSH equivalent in Class Web subject
headings or in TRELLIS
 E.g. Huron Indians
 LCSH = Wyandot Indians
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
Questions?????