CatExpress glossary

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allowable duplicate records
Records for the same resource, but using different cataloging languages or rules. See also parallel records.

The person, persons, or corporate body responsible for the writing or compilation of a work. Usually distinguished from an editor, translator, compiler, although these may be regarded as authors.

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bibliographic information
Details about an item that are sufficient to identify it for the purpose of retrieval are placed in a specific format that describes one item in a collection. Examples: author, title, publisher, publication location, edition, series title, and notes.

bibliographic record
Contains the cataloging information that describes the physical format and intellectual content of a single entity (a book, video, computer file, CD, etc.). Catalogers create records by encoding this information using tags, indicators, and subfield codes in a standard format called MARC 21 ( MAchine- Readable Cataloging). Each record is divided into fields (author, title, subjects, etc.) Fields are subdivided into subfields (place of publication, publisher, etc.).

See Books format.

Book number
The part of a call number that distinguishes a specific item from other items within the same class number, also called a Cutter number. A book number is composed of letters from the author's name or letters from the title main entry and numbers. There are several systems for creating book numbers.
A library using the Cutter-Sanborn system can have D548d indicate David Copperfield by Dickens (where D stands for the D of Dickens, 548 stands for "ickens" and d stands for David Copperfield). See also call number; Cutter number; work mark.

Books format
OCLC-MARC format used for cataloging books and book-like material. In WorldCat searches, use the Books index (label: bks) as a qualifier to limit results to records for this type of material.

Scan an index for a match or the closest match to a term (word, phrase, or whole phrase) in records. The system matches the exact text string—character by character, from left to right—against the characters in the specified index. Produces a browse list that highlights the closest match and shows the number of records for each term in the list. Clicking an entry opens the record or a record list, if multiple records match.

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call number
A set of letters, numerals or other symbols (in combination or alone) used by a library to identify a specific copy of a work. A call number consists of the class number and book number (or Cutter number).

classification number
The part of a call number, usually a combination of letters and numbers, used to classify library resources by subject area using a particular classification system.

See Continuing Resources format.

CODEN Designation
The Chemical Abstracts Service assigns six-character Coden Designations to serials. The first four characters are letters and have a mnemonic relationship to the serial. The fifth character is either A, B, C, or D. The sixth character is an alphabetic or numeric check character. For example, AISJB6, CADIDW. The Coden Designation is located in field 030, subfield ‡a and can be used during batchload matching.

See Computer File format.

Computer File format
OCLC-MARC format used for cataloging the following classes of electronic resources: computer software (including programs, games, fonts), numeric data, computer-oriented multimedia, and online systems or services. In WorldCat searches, use the Computer File index (label: com) as a qualifier to limit results to records for this type of material.

conference name
All or part of the name or title of a conference. A conference name could also be included in a title, abstract, notes, or text of a library resource. Examples: names of meetings, exhibitions, expositions, festivals, athletic contests, scientific expeditions.

See OCLC Connexion.

copy cataloging
Using and modifying an existing bibliographic record for local use. OCLC creates and stores an archive record of the modifications at OCLC.

corporate name
The names of associations, institutions, businesses, firms, nonprofit enterprises, governments, agencies, performing groups used as entries in records.

See OCLC Customer Services Division (CSD).

Cutter number
A book number based on the widely used scheme devised by Charles Ammi Cutter. In colloquial usage, synonymous with book number. See Book number.

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A grouping of data for a particular purpose or for the use of a particular set of users, usually organized in fields and providing tools to enable manipulation of the data for sorting, grouping and searching.

Selections predetermined by the computer or an application on the computer in the absence of specific selections made by the user.

Character ( ‡), followed by a single letter or number code, used to define the beginning of a subfield within a variable field in a MARC bibliographic or authority record. See also subfield.

For batchload services, the delimiter is entered as a dollar sign ($). If immediately followed by a lowercase letter or single numeral, OCLC converts the dollar sign into a delimiter. A $ followed by a numeral and period, two or more numerals, or a blank space is interpreted as a monetary value and is not converted.

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electronic resource
See Computer File format.

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In a record, a marked area in which the same kind of information is consistently entered.

file transfer protocol (FTP)
File Transfer Protocol (FTP) is a TCP/IP-based protocol that is generally available for file transfers to and from a large variety of hosts including IBM mainframes, Tandem Guardian systems, and Unix hosts. FTP is the method used in the OCLC Electronic Batchload Service.

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government document number
Government-assigned number for materials printed at the expense of and by the authority of any office of the government, for example, United States Superintendent of Documents (SuDoc) numbers. Other government numbers may be used such as Canadian government numbers from the Outline of Classification. The form of these numbers varies.

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holding library
The library or collection within an institution represented by the holding library code. See OCLC holding library code.

holding library code
See OCLC holding library code.

The total stock of materials, print and nonprint, owned by a library or library system, usually listed in its catalog. Synonymous in this sense with library collection. In a narrower sense, all the copies, volumes, issues, or parts of an item owned by a library, especially a serial publication, indicated in a holdings statement in the record representing the item in the catalog. Holdings can be recorded in the MARC 21 Format for Holdings Information.
1) OCLC institution symbols attached to a record, indicating libraries that own the item described by the record. 2) The collective resources owned or held by the library.

holdings information
The location, status and/or copies associated with a single bibliographic item of a specific publication held by a particular institution.

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A detailed alphabetical or numerical list for a specific kind of bibliographic data provided by the system for retrieving a record or sets of records from a database such as WorldCat.

institution symbol
See OCLC symbol.

International Standard Book Number (ISBN)
A unique identification number assigned to a work by its publisher. OCLC has converted the existing 10-character ISBN to the new 13-character format. The thirteenth character is a check character that may be a number or the letter x. In printed form, the ISBN has three hyphens. Hyphens are omitted in online records. ISBNs are stored in field 020 in bibliographic records.

International Standard Serial Number (ISSN)
A unique identification number assigned to a serial through the ISSN Network. Each ISSN has eight characters. The eighth character is a check character that may be a number or the letter x. A hyphen follows the fourth character.

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keyword search
A type of search that uses a complete word, usually combined with other keywords.

A set of textual and nontextual materials in which no one material dominates and which has a collective title. For example, a workbook that comes with flashcards, worksheets, video recording, gameboard, playing pieces, and dice.

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See Library of Congress.


Library of Congress
The research arm of the Congress of the United States, established in 1800 and located in Washington, D.C. Although not officially a national library, the Library of Congress (LC) provides services appropriate to a national library. LC also administers the U.S. copyright system, serving as the nation's copyright depository.

LC is the primary source of original cataloging in the United States. Machine-readable cataloging (MARC) and cataloging-in-publication (CIP) programs originated at the Library of Congress.

Library of Congress call number
Identification number derived from the U.S. Library of Congress classification system. Used to retrieve a library resource.

Library of Congress Control Number
An accession number assigned by the Library of Congress. The LCCN is usually a two- or four-character number representing the year, followed by a hyphen and up to six numbers. The Library of Congress formerly referred to control numbers as card numbers.

limit a search
A technique to make your search more precise. Limiting eliminates from the results whole classes of records so that your search results are more understandable.

location information
A list of libraries that have used a bibliographic record for cataloging. Each bibliographic record in WorldCat has location information.

log off
The process of disconnecting from a local or remote system.

log on
The process of connecting to a local or remote system.

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Machine readable cataloging

See Maps format.

Maps format
OCLC-MARC format used for cataloging cartographic material, such as maps, atlases, globes, digital maps. In WorldCat searches, use the Maps index (label: map) as a qualifier to limit results to records for this type of material.

Machine-Readable Cataloging. An international standard digital format for the description of bibliographic items developed by the Library of Congress during the 1960s to facilitate the creation and dissemination of computerized cataloging from library to library within the same country and between countries. By 1971, the MARC format had become the national standard for dissemination of bibliographic data and by 1973, an international standard.

Several versions of MARC are in use internationally, the most predominant of which is MARC 21, created in 1999 as a result of the harmonization of U.S. and Canadian MARC formats. UKMARC is used primarily in the United Kingdom. UNIMARC is widely used in Europe. Besides formats for bibliographic records, the MARC 21 family of standards now also includes formats for authority records, holdings records, classification schedules, and community information.

meeting name
See conference name.

See Mixed Materials format.

Mixed Materials format
OCLC-MARC format used for cataloging materials in two or more forms that have accumulated by or about a person or body, excluding instructional materials, which are coded as Type: o (Kit). Includes archival material and mixed manuscript materials such as text, photographs, and sound recordings. In WorldCat searches, use the Mixed Materials index (label: mix) as a qualifier to limit results to records for this type of material. See also kit.

music number
See publisher number.

music publisher number
See publisher number.

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Supply significant additional information about an item described in a bibliographic record.

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Previously called Online Computer Library Center, Inc. and Ohio College Library Center. Nonprofit membership organization serving libraries around the world to further access to the world's information and reduce library costs by offering services for libraries and their users.

OCLC cataloging
OCLC's online services for cataloging library materials using WorldCat and for machine-readable records and other offline products. Participating institutions retrieve bibliographic records, modify the information for local use, and then order the modified record from OCLC. Institutions also contribute new records and location information to WorldCat for items for which no record is found. Access to cataloging activities is provided by the Connexion client, Connexion browser, CatExpress, and Z39.50 cataloging.

OCLC CatExpress
An OCLC service for copy cataloging. CatExpress users log on from Connexion browser. Connexion users who also subscribe to CatExpress log on to Connexion and access CatExpress from the Express tab.

OCLC Connexion
Integrated cataloging service that offers access to WorldCat, the OCLC Authority File and other online databases. The browser interface provides access via Internet Explorer or other browsers. The client interface provides access via Microsoft Windows-based software installed on user workstations. Both interfaces offer the same cataloging capabilities. Each also provides unique capabilities. The browser interface uniquely provides access to CatExpress, Dewey services, local holdings maintenance, and OCLC Selection and supports creation of pathfinders and other electronic resources. The client uniquely supports the use of macros, local files, offline cataloging, integrated label processing, using non-Latin scripts for cataloging, and batch processing searches and record actions.

OCLC Connexion browser
One of two interfaces to OCLC Connexion cataloging services and products. Introduced in mid-2002, the Web-browser-based interface provides the same access to cataloging in WorldCat as the Connexion client. The browser interface also provides some unique functions, including WebDewey and Abridged WebDewey, CatExpress, OCLC Selection, Pathfinders and Local Holdings Maintenance.

OCLC Connexion client
One of two interfaces to OCLC Connexion cataloging services and products. Introduced in the second half of 2003, the Windows-based software interface provides the same access to cataloging in WorldCat as the Connexion browser. The client interface also provides some unique functions, including the use of macros and an automatic macro recorder, extensive keyboard shortcut customization, integrated label printing, local files, offline cataloging, batch processing for searches and record actions, use of non-Latin-based multiscripts for cataloging, and more.

OCLC Customer Services Division (CSD)
OCLC's user assistance and support contact desk that provides support for telecommunications, hardware, and software. Formerly called OCLC User and Network Support (UNS).

OCLC holding library code
A unique code that identifies a holding library within an institution. See also OCLC symbol.

OCLC's implementation of the MARC bibliographic format. See also MARC 21 Format for Bibliographic Data.

OCLC number
See OCLC control number.

OCLC Product Services Web
An OCLC Web site from which users retrieve labels, records, and reports. It also provides OCLC software downloads, macros, scripts, and labels.

OCLC symbol
A unique identifier assigned by OCLC to member libraries and other participants. OCLC symbols in records and in holdings displays identify libraries that have entered, modified, and used the bibliographic records for cataloging. See also OCLC holding library code.

OCLC User and Network Support (UNS)
See OCLC Customer Services Division (CSD).

Online Service Center
The Online Service Center is a secure, Web-based tool that library staff with administrative authority can use to order OCLC products and services as well as view, update and manage their OCLC account information.

See Online Service Center.

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Portable Document Format. The Adobe Acrobat standard that enables the same graphic display of a document on different platforms. Because the graphical display preserves hard-copy features such as page numbers, logical page breaks, tables of contents, etc., printing a PDF document makes a better hard copy than printing HTML-formatted documents. Most OCLC user documentation is available in PDF as well as HTML.

Data or a display option that remains in effect until changed. For example, a holding library code persists until logoff unless changed by the user.

physical description
Describes the physical characteristics of an item. For books, includes such data as dimensions, number of pages and illustrations, and accompanying materials, if any.

The person or company responsible for placing a book or other resource on the market. A publisher and printer may be the same person or company, although in modern publishing this is not usually the case.

publisher location
The location of the publisher of an item.

publisher number
Plate and publishers' numbers for printed music (scores); serial and matrix numbers for sound recordings; videorecording numbers for visual materials, and publisher numbers other than those for sound recordings, music, or videorecordings. The publisher number is located in field 028, subfield ‡a and is used for batchload matching. For example, B 07042 L.

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See Sound Recordings format.

A machine-readable record in a database that contains bibliographic information about a separately cataloged library item, set, or serial. A record can describe a book, journal article, or any other library resource, including electronic resources. It also contains coded information used to retrieve and work with data. In WorldCat, a bibliographic record is in OCLC-MARC format.

record standard
A standard for representing and exchanging data in machine-readable form. See also record structure.

record structure
The order in which content designators and content appear in the record and/or file. Record structure can include such specifications as tape media, header, blocking techniques, and characters sets. The terms record standard and record structure are used interchangeably. See also content designation; content of the record

record type
Term that identifies the format, genre, or medium of a document for cataloging and for retrieving a specific type of record. Valid values vary by database. In FirstSearch/Resource Sharing searches, use the advanced or expert search screens to select a valid document type from the drop-down menu. In Connexion, type a full search in the command line of the Search WorldCat screen or window, or select from a dropdown list in the guided search area of the screen or window.

report number
Uniquely identifies a technical report; not a series number. There are two kinds: Standard Technical Report Numbers and other nonstandard numbers.

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Command used to send a browse string to the system to scan indexes. See browse.

See Scores format.

Scores format
OCLC-MARC format used to catalog musical scores. In WorldCat searches, use the Scores index (label: sco) as a qualifier to limit results to records for scores.

A publication issued over time in installments. Include annual reports, continuing directories, electronic journals, journals, magazines, monographic series and newspapers, etc. Serial is one of the material types in the continuing resource MARC format for bibliographic records. See Continuing Resources format.

Serials format
See Continuing Resources format.

series title

The collective title of all items in a series, as opposed to each item's individual title.


Series title—Summer Institute of Linguistics Publications in Linguistics

Title (of individual item in series)—Modes in Denya Discourse

See also title.

Time between logon and logoff when an OCLC library is logged on to the OCLC system to use a production or service.

set holdings on a record
OCLC member libraries "set" their holdings by attaching their OCLC symbols to bibliographic records in WorldCat. Having OCLC symbols attached to a record establishes that the institution holds the item.

set of records
A group of records viewed when 1) a search retrieves multiple records or 2) a display of multiple records is requested.

Sound Recordings format
OCLC-MARC format used to catalog sound recordings. In WorldCat searches, use the Sound Recordings index (label: rec) as a qualifier to limit results to records for sound recordings.

Words to be omitted from a search because they are so common that they have no informational value. Stopwords are not indexed and are therefore ignored by the system if entered in a search. See stopword lists in the Help for Connexion or the Help for FirstSearch/Resource Sharing. Examples: a, an, and, or, and the.

The smallest unit of information in a variable field. Data in subfields is preceded by a delimiter ( ‡) and a single letter or number code. A subfield a ( ‡a) is implicit at the beginning of most fields (the delimiter and code do not display). See also delimiter.

subject words
Subjects categorize library material. Subject schemes (for example, Library of Congress Subject Headings (LCSH)) use a controlled vocabulary; that is, they use the same words to categorize the library material about the same subject. For example, an item about chemiculture and another item about soilless agriculture can have the same subject entry, Hydroponics.

Appears in records as part of the title proper or as the subtitle in a separate subfield.

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The number of a variable field in a MARC record that identifies and distinguishes the field. Fields appear in tag group (numeric) order. Each number indicates what kind of data the field contains. Example: Field 245 is a title field.

A word, phrase, character, or group of characters, appearing on an information source that names the item.

truncation (*)
Truncation allows you to search for a term and its variations by entering only the root of the term or phrase followed by an asterisk *. Use the truncation symbol only at the end of a term. See also wildcard (# or ?).

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uniform title
Collects the publications of an author, composer, or corporate body into a unit. The unit may contain several expressions and manifestations of the work, for example, complete works, works in a particular literary or musical form, or translations into various languages for commonly known or classical works. Examples include sonatas, songs, Aesop's fables, Bible, and translations in various languages of Hamlet. Other uniform titles distinguish between different publications (usually serials) with the same titles.

See OCLC Customer Services Division (CSD).

Uniform Resource Identifier. Provides electronic access data in a standard syntax. The URI is located in field 856, subfield ‡u and can be used during batchload matching.

Uniform Resource Locator. Address or location of a Web page or other electronic resource.

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See Visual Materials format.

Visual Materials format
OCLC-MARC format used for cataloging projected medium, nonprojected graphics, etc. In WorldCat searches, use the Visual Materials index (label: vis) as a qualifier to limit results to records for this type of material.

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work mark
The part of a book number that consists of a letter appended to the author (or biographer) designation to show the first letter of the title (or first letter of the surname of the biographer). See also Book number.

A database of tens of millions of online records built from the bibliographic and ownership information of contributing libraries. The WorldCat database is the largest and most comprehensive of its kind. OCLC members use WorldCat for a full array of technical library services, including cataloging, interlibrary loan, reference, union listing, local holdings, and many more. WorldCat is the foundation of many OCLC services that let your library process, manage and share information resources. And with its records now opened to Web search, bookselling and bibliography sites, holdings in your collection are even more easily located and obtained by both your local patrons and a broad-based Internet usership.