2.50.1 Field 1 Function Keys

2.50.2 Field 2 Decode MARC Properties: multiple, tab stop

Menu Style: Radio Button/Check Box

Menu Values:
Fields (==tags)
Leader & Control Fields (001-008) Positions
Number & Code Fields (01X-04X) Subfields

2.50.3 Field 3 OPAC Options Function: multiple, tab stop

Purpose: To determine which Options will be displayed in the OPAC from the Option function.

Format: It is a check box selection.

Menu Style: Radio Button/Check Box

Menu Values:
Interest Notification
Account

2.50.4 Field 4 Authority "Sees" Display: mandatory, tab stop

Purpose: To determine the display format of authority "Sees" terms. This effects all Subject Headings and Author search displays.

Discussion:

A "see" is a term that reverts to another term automatically. For example, Samuel Clemens is a "see" to Mark Twain. William Jefferson Clinton is a "see" to Bill Clinton. In the National Library of Medicine's Medical Subject Headings (MeSH), Cancer is a "see" to Neoplasm.

Option "Show all sees" will show all non-redundant terms that match the search and which point to the terminating term. For example, a search on Serodiagnosis in MeSH 2000 will yield:

 Select from Exact Enhanced Subject Headings "Serodiagnosis".  
------------------------------------------------------------- 
  ( ) Serologic Tests 
         used for SERODIAGNOSIS 
  ( ) AIDS Serodiagnosis 
         used for HIV SERODIAGNOSIS 
         used for HTLV-III SERODIAGNOSIS 
  ( ) Syphilis Serodiagnosis 
         used for SERODIAGNOSIS, SYPHILIS 
------------------------------------------------------------- 
  [Main]  [Holdings]  [Define]  [Explode]  [Help] 
 

Since HTLV-III SERODIAGNOSIS is shown, the redundant term "HTLV III SERODIAGNOSIS" is not shown, although NLM does list it. It is not shown since it does not add significant value to this display.

Option "Show Optimized Sees" will show the relevant terms, unless the target term sufficiently contains the term. Using the same example as above:

 Select from Exact Enhanced Subject Headings "Serodiagnosis".  
------------------------------------------------------------- 
  ( ) Serologic Tests 
         used for SERODIAGNOSIS 
  ( ) AIDS Serodiagnosis 
  ( ) Syphilis Serodiagnosis 
------------------------------------------------------------- 
  [Main]  [Holdings]  [Define]  [Explode]  [Help] 
  

Since AIDS Serodiagnosis and Syphilis Serodiagnosis contain the search term, it may be unnecessary to show the Sees which also contain the search term.

Option "Don't show the 'Sees'" makes for the briefest display by not showing the rendering term. Again using the Serodiagnosis search:

 Select from Exact Enhanced Subject Headings "Serodiagnosis".  
------------------------------------------------------------- 
  ( ) Serologic Tests 
  ( ) AIDS Serodiagnosis 
  ( ) Syphilis Serodiagnosis 
------------------------------------------------------------- 
  [Main]  [Holdings]  [Define]  [Explode]  [Help] 
  

Here, Serologic Test appears without any documentation as to why it matches the search Serodiagnosis. The user might correctly assume that the search engine is assisting in the search.

Which is the best display? The answer depends on the task, the depth of personal knowledge, and personal preferences.

Menu Style: Radio Button/Check Box

Menu Values:
Show all Sees
Show optimized Sees
Don't show Sees, only show target authority

2.50.5 Field 5 Card Catalog Max. Char./Line: 2 characters, mandatory

Purpose: To specify the maximum number of characters on one line in the Bibliographic Card Catalog Display. This display occurs in the OPAC and the MARC Utilities.

Format: It is any number greater than 65 and less than 81. The recommend value is 80.