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   Are there any sites that are using (or are
considering using) the Library of Congress Subject
Headings (LCCH) for providing access to WWW resources?
Are there any sites that have made use of general or
special thesauri to provide such access? Are
 
   It has occurred to me that a hypertexted version
of a thesaurus may in fact provide the value-added
feature of organization and structure that I have sought
for the past several months and days.  Most thesauri
offer:
        1) an alphabetical point of entry
        2) definition/scope
        3) Broader Terms
        4) Narrower Terms
        5) Related Terms
 
   Through this structure conceptual relationships are
presented and organized. With hypertext, any and all
terms can be (in)directly linked to each other. While
we may choose to "classify" a given WWW resource under
a specific LCC class number/subject description, it can also be
linked to one (or more) appropriate thesauri terms, which
in turn would offer the user the option to enter the "classified"
structure from any perspective (or at least from any entry
term (or cross reference))!
 
   The key of course is to map LCCH into the LCC schedules
in such a way that only the relevant and appropriate (?)
terms are linked to the relevant and appropriate (?) categories
within the LCC schedules. [The availability of a hypertexted
version of the LCCH _and_ the LCC through LCs _Classification
Plus_ as recently noted by Bruce Chr. Johnson (CDS) would
greatly facilitate such an effort; this in turn could provide
the basis for the implementation of a HTML analog for the WWW].
 
   Likewise hypertext or HTML versions of _other_ thesauri
may in turn be used for providing similar access to specialized
WWW resources _or_ mapped into the LCCH/LCC sets as entry for
the specialist user (e.g. Ei Thesaurus (engineering), CAB Thesaurus
(agriculture), ACM Computing Reviews, etc.)
 
   While certainly we should question the need to provide
access at this time at such specific details, I believe that
now may in fact be the best time to test and/or implement
this type of interface. While the WWW may seem overwhelming
to most, it is still (relatively) managable.
 
   I see the integration of various thesauri into the LCC
as an extension of LC's current roles within the library
community. The assignment of an WWW resource could be
viewed as an expanded opportunity for OCLC and would
dovetail well with its historical role as well as its
new role as coordinator of the Internet cataloging
project. Indeed, as described in a press release this
week, OCLC NetFirst service appears to be the very umbrella
under which a LCSH/LCC service that provides _an_ organized
interface to the WWW could be implemented by and for
libraries and their patrons.
 
    We should also not ignore the commercial aspects
of such value-added organization!
 
    I'd appreciate any and all thoughts, comments and
reaction to these ideas and proposals.
 
    Please post to this listserv or newsgroup!
 
Gerry McKiernan
Coordinator, Science and Technology Section
Reference and Instructional Services Department
Iowa State University
152 Parks
Ames IA 50011
 
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