A

AACR2
Anglo-American Cataloguing Rules (2nd ed.); established in 1978 and revised in 1988. "These rules are designed for use in the construction of catalogues and other lists in general libraries. The rules cover the description of, and provision of, access points for all library materials commonly collected."
AALL
American Association of Law Libraries.
ABSTRACT
A summary of an article, a book, a national news program, etc.
ACCESSION NUMBER
Before automation, a unique identification number assigned to each volume when it was added to the library collection; barcode now serves this function.
ACIS
Academic Computing and Information Services.
ACORN
Vanderbilt's automated library system, including an online catalog and circulation, acquisitions, and cataloging functions.
ACQUISITIONS
The process of acquiring materials for a library, either through purchase or as gifts. In the Heard Library, this process is a function of the Order Services unit of Resource Services, Law Library, and Biomedical Library.
ACRL
Association of College and Research Libraries (a division of ALA).
ADAPTIVE WORKSTATION
A computer designed to accommodate users with disabilities.
ADDED COPIES
Duplicate copies of titles already in the collection.
ADDED ENTRY
An entry additional to the main entry, by which an item is represented in a catalog. This is an access point, such as editor, subject, etc., which can be used in a search. For example, a book edited by John Smith would have "Smith, John" as an added entry.
ADDED VOLUME
Pieces of a book set that are received after the initial piece is cataloged. For example, volume 2 of a set that is received after volume 1 is cataloged.
AGRARIAN
A group of twelve writers who discussed the benefits of an agricultural economy published as "I'll Take My Stand" in 1930. The original manuscript and papers of the members are part of Special Collections.
ALA
American Library Association.
ANNEX
Remote storage facility of the library system; located approximately two miles from campus.
APPLICATION
A computer program created to perform a certain task for the user; for example, word processing or e-mail.
APPROVAL PLAN
An agreement between a library and a publisher in which the publisher supplies all current books published in subjects specified by the library. Books received on these plans are called approvals.
ARL
Association of Research Libraries.
ASCII
American Standard Code for Information Interchange; a standard that enables computer files and text, such as electronic mail messages, to be used on many different systems. Word processing programs can usually save files in an ASCII or binary (their default) format. ASCII is used by most microcomputers and printers, and, because of this, text-only files can be transferred easily between different kinds of computers.
ASERL
Association of Southeastern Research Libraries.
ATHENA
A union catalog of the online catalogs of some members of the Nashville Area Library Alliance. Patrons can access this catalog using a single search.
ATLA
American Theological Library Association.
AUL
Associate University Librarian; occasionally referred to as Assistant University Librarian.
AUTHENTICATION
Verification of identity as a security measure. Passwords and PIN numbers are forms of authentication.
AUTHORITY FILE
A listing of standardized forms of name and subject entries used as headings in the catalog and the authorities, or sources, on which they are based.

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