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Library of Congress Classification
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This article describes the various aspects of Library of Congress Classification (LCC) and its suitability as a library classification system for classifying library resources. It begins with an introduction, recounting its history and development, leading up to an explanation of principles, structure, tables, and notation. This is followed by number building examples with MARC 21 coding for LCC numbers. LCC tools and aids are listed thereafter with a description of the use of technology for efficient and consistent number building, and the process of proposing new numbers online to be added to the LCC schedules. Finally, analysing both its advantages and criticisms it concludes that LCC is a suitable classification system for libraries.

Keywords: Library of Congress Classification; LCC; Library Classification

CONTENTS

1 Library of Congress Classification - Introduction
2 History and Development
3 LCC Principles and Structure
3.1 Main Classes
3.2 Subclasses
3.3 Divisions
3.4 Schedule Format
3.4.1 Preface
3.4.2 Contents Page
3.4.3 Outline
3.4.4 The Body of the Schedule
3.4.5 Tables
3.4.6 Index
4 Notation
4.1 Symbols
4.2 Expressiveness
4.3 Hospitality
4.4 Mnemonics
4.5 Brevity
5 Building a Call Number
6 Marc 21 Coding for Call Numbers
6.1 Indicators
6.2 Subfield Codes
Tools and Aids for LC Classification
7.1 LCC Print Schedules
7.2 SuperLCCS
7.3 Classification Web
7.4 Classification and Shelflisting Manual (CSM)
7.5 LCC Outline
7.6 Cataloging Calculator
7.7 Library of Congress (LCC) Approved Lists
7.8 Name Authority Records
8 Proposing a New Class Number in LCC
9 Evaluation of the Library of Congress Classification
9.1 Advantages of LCC
9.2 Criticisms of LCC (and Criticism of Criticisms)
10 Conclusion
11 References


LIBRARY OF CONGRESS CLASSIFICATION

The Library of Congress Classification (LCC) is a system of library classification developed by the Library of Congress. It was developed in the late nineteenth and early twentieth centuries to organize and arrange the book collections of the Library of Congress. Over the course of the twentieth century, the system was adopted for use by other libraries as well, especially large academic libraries in the United States. It is currently one of the most widely used library classification systems in the world. The Library's Policy and Standards Division maintains and develops the system¹. In recent decades, as the Library of Congress made its records available electronically through its online catalog, more libraries have adopted LCC for both subject cataloging as well as shelflisting.

There are several classification schemes in use worldwide. Besides LCC, the other popular ones among them are Colon Classification (CC), Dewey Decimal Classification (DDC), Universal Decimal Classification (UDC), and Bliss Bibliographic Classification (BC). Out of these, DDC is the classification system which is most commonly used in libraries.

The potential of Library of Congress Classification (LCC) system is yet to be explored in libraries. This article describes the various aspects of LCC and its suitability as a library classification system for classifying library resources … … ...

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LIBRARY AND INFORMATION SCIENCE PORTAL
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Library and Information Science Portal (LIS Portal) is a web portal featuring top popular stories from the Librarianship Studies & Information Technology blog and other important sources

Contents:

=> Library and Information Science Portal Introduction Video

=> Library and Information Science Portal Introduction Presentation

=> Top 10 Featured Library and Information Science (LIS) Articles

=> Top 10 Featured Library and Information Science (LIS) News

=> Top 10 Facts Did You Know in Library and Information Science (LIS)

=> Top 10 Featured Library and Information Science (LIS) Lists

=> Featured Library and Information Science (LIS) Video

=> Featured Library and Information Science (LIS) Picture

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PRECIS (Preserved Context Index System)
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PRECIS (PRESERVED CONTEXT INDEX SYSTEM) ➨ PRECIS is an acronym for PREserved Context Index System or PREserved Context Indexing System. PRECIS is a computer assisted pre-coordinate subject indexing system developed by Derek Austin in 1968 as a result of long research which the Classification Research Group (CRG) undertook to give a new general classification for information control. In 1969 British librarians Derek Austin and Peter Butcher issued PRECIS: A rotated subject index system, published by the Council of the British National Bibliography. This appears to be the first published report on an innovative method for adding subject data in the form of descriptors to the computerized MARC record. This system is considered as the most important development in alphabetical approach to subject specification in recent years.

The system aims at providing an alphabetical subject index which is able to cater to the variant approaches of the users along with their context. In order to achieve this objective, the system arranges the components of a document, into a significant sequence, thus, all the important components in the string are used as approach points. Simultaneously, the terms are displayed in such a fashion that every term is related to the next term in a context dependent way. Moreover, the system is amenable to computer operation, which further adds to the advantage of the system as the entries will be prepared and arranged automatically by the computer.

Contents

> PRECIS (Preserved Context Index System)
> Essential Features of PRECIS
> Concept of PRECIS
> PRECIS Indexing Procedure
> Primary Operators
> Secondary Operators
> Primary Codes
> Format of Entry
> Filing Order
> Conclusion


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What are the Benefits of RDA?
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WHAT ARE THE BENEFITS OF RDA? / WHY IS RDA NEEDED?

* RDA builds on the strengths of AACR2 but has some new features that make it more useful for description as a cataloging code for the digital environment in which libraries now operate.

* RDA is better at catering for digital resources and for resources with multiple characteristics and will provide more guidance on the creation of authority headings.

* RDA has been developed with the end-user in mind.

* RDA provides a consistent, flexible and extensible framework for the description of all types of resources, including digital resources and those with multiple characteristics.

* RDA is compatible with internationally established principles, models, and standards.

* RDA is compatible with a range of encoding schemas, such as MODS, Dublin Core, ONIX and MARC. It will allow library bibliographic records to be integrated with those produced by other metadata communities, and to move into the digital environment beyond library catalogs.

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Resource Description and Access

Glossary of Library & Information Science - RESOURCE DESCRIPTION AND ACCESS (RDA) ➨ RDA stands for “Resource Description and Access” and is the title of the standard, that is the successor to AACR2. Resource Description and Access (RDA) is a standard for descriptive cataloging providing instructions and guidelines on formulating bibliographic data. Resource Description & Access (RDA) is a set of cataloging instructions based on FRBR and FRAD, for producing the description and name and title access points representing a resource. RDA offers libraries the potential to change significantly how bibliographic data is created and used. RDA is a standard for resource description and access designed for the digital world. It provides (i) A flexible framework for describing all resources (analog and digital) that is extensible for new types of material, (ii) Data that is readily adaptable to new and emerging database structures, (iii) Data that is compatible with existing records in online library catalogs. RDA is a package of data elements, guidelines, and instructions for creating library and cultural heritage resource metadata that are well-formed according to international models for user-focused linked data applications. RDA goes beyond earlier cataloging codes in that it provides guidelines on cataloging digital resources and places a stronger emphasis on helping users find, identify, select, and obtain the information they want. RDA also supports the clustering of bibliographic records in order to show relationships between works and their creators.

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Resource Description and Access (RDA)
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Library and Information Science Videos
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Library and Information Science Videos is an initiative of Librarianship Studies & Information Technology blog to showcase the finest LIS videos for librarians, catalogers, metadata, archives, and knowledge professionals. The videos are sourced from Librarianship Studies & Information Technology YouTube Channel which are organized based on the categories (or labels) of Librarianship Studies blog.

A featured video will be displayed in this blog post along with a brief summary. It will also be displayed at the bottom of the blog in a large view (recommended). It is important to note that the large view of the featured video is available only in the web version. So if you are viewing on a mobile phone or some mobile device then go to the bottom of the blog post area to locate and visit the option "View web version" to find the featured video.

Contents

Background
Featured Video
Videos in Librarianship Studies & Information Technology YouTube Channel


BACKGROUND

I always wanted to see beautiful libraries of the world like the Library of Congress of Washington D.C., the British Library of London, and the Bodleian Library of Oxford. I also wanted to view Library and Information Science tutorial videos by top-ranked library and i-schools. There are some topics which cannot be demonstrated effectively through text (as in article form), where video format is preferred. For example, if the subject is like Use of Robots In Libraries, then it would be more interesting to see a video showing robots in action in libraries. Likewise, a biography of a library and information science luminary like Dr. S. R. Ranganathan, Dr. Carla Hayden, Lois Mai Chan, or Charles Ammi Cutter should better be viewed in a video. So an idea came to my mind to create a YouTube Channel on Library and Information Science with top quality videos on the pattern of Khan Academy.

Library and Information Science Videos supports the purpose of Librarianship Studies & Information Technology to provide leadership for the development, promotion, and improvement of library and information services and the profession of librarianship in order to enhance learning and ensure access to information for all. Librarianship Studies & Information Technology blog is envisioned as the Britannica, The Huffington Post, Khan Academy, and more closely like the Encyclopedia of Library and Information Sciences; an authoritative source for consultation and reference for any library or information profession related issue and a treasure hub of knowledge on Library and Information Science, which is open and free for all the library professionals worldwide.

FEATURED VIDEO

Dr. Carla Hayden: President Obama's Nominee For The Librarian Of Congress - [Watch this video on the large screen at the bottom of Librarianship Studies & Information Technology blog - Recommended] - This video is created by Obama White House Archives to introduce Dr. Carla Hayden as President Obama's Nominee For The Librarian Of Congress. See Dr. Carla Hayden in action as she speaks about her career and experience as a librarian, and tour the Library of Congress and Enoch Pratt Free Library with this incredible video.

… … … …

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