Courtesy of: Master-Degree-Online.com Z39.50
Z39.50 ➨ Z39.50 is a national and international standard defining a protocol for computer-to-computer information retrieval. It is a client–server, application layer communications protocol for searching and retrieving information from a database over a TCP/IP computer network. It is covered by ANSI/NISO standard Z39.50, and ISO standard 23950. The National Information Standards Organization of the United States (NISO) relating to libraries begin with Z39. To use Z39.50, you will need either special software or have an ILS with Z39.50 capabilities. Z39.50 acts like a “back door” into a library catalog. In order to download another library’s records, that library has to allow Z39.50 access to its catalog. If it does, though, there is no fee to pay the library providing the record.
CONTENTS
- History
- What Z39.50 Does
- Advantages and Disadvantages
- Modernization Efforts
https://librarianshipstudies.blogspot.com/2017/10/z3950.html
Contents
1 Library of Congress Classification - Introduction
2 Library of Congress Classification History and Development
3 Library of Congress Classification 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 Library of Congress Classification Notation
4.1 Symbols
4.2 Expressiveness
4.3 Hospitality
4.4 Mnemonics
4.5 Brevity
5 Building a Call Number Using Library of Congress Classification
6 Marc 21 Coding for Library of Congress Classification Call Numbers
6.1 Indicators
6.2 Subfield Codes
7 Tools and Aids for Library of Congress 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
12 Library of Congress Classification Articles and News
13 Library of Congress Classification Quiz
14 Library of Congress Classification Videos
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