SAKET SHARMA

Good news for UGC NET Library & Information Science aspirants!

The complete syllabus from Unit 1 to Unit 6 of UGC NET LIS has been covered in a dedicated Hindi podcast playlist for easy learning and revision.

Whether you are preparing during travel, office hours, or free time, this playlist will help you revise important concepts anytime, anywhere.

Listen here: youtube.com/playlist?list=PL1...

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Created by Saket Sharma

3 days ago | [YT] | 0

SAKET SHARMA

Creative Commons (CC) Licenses – Important One-Liners

Concept and Purpose

👉 Creative Commons (CC) licenses provide a standardized legal framework for sharing copyrighted works.
👉 CC licenses enable creators to grant public permission to use their works under specific conditions.
👉 CC licensing plays a major role in Open Access (OA) publishing and Open Educational Resources (OER).
👉 The Creative Commons system was launched in 2001 to promote legal sharing of digital content.

Four Core License Elements

👉 BY (Attribution) requires users to give proper credit to the original creator.
👉 Attribution is mandatory in all Creative Commons licenses.

👉 NC (Non-Commercial) restricts the work to non-commercial uses only.

👉 ND (No Derivatives) allows redistribution only in the original unmodified form.

👉 SA (Share-Alike) requires that adapted works be distributed under the same license.

The Six Core Creative Commons Licenses

👉 CC BY (Attribution) allows any type of reuse, including commercial use, with proper attribution.

👉 CC BY-SA (Attribution–ShareAlike) allows reuse and adaptation but requires the same license for derivative works.

👉 CC BY-NC (Attribution–NonCommercial) allows reuse and modification only for non-commercial purposes.

👉 CC BY-NC-SA (Attribution–NonCommercial–ShareAlike) allows non-commercial adaptation with the same licensing conditions.

👉 CC BY-ND (Attribution–NoDerivatives) allows redistribution for any purpose but prohibits modifications.

👉 CC BY-NC-ND (Attribution–NonCommercial–NoDerivatives) is the most restrictive license allowing only non-commercial sharing of unchanged works.

Public Domain Tools

👉 CC0 (No Rights Reserved) allows creators to waive all copyright and dedicate their work to the public domain.

👉 Public Domain Mark identifies works that are already free from known copyright restrictions.

Important Technical Rules for LIS Professionals

👉 Creative Commons licenses are irrevocable once applied.

👉 Proper attribution should follow the TASL principle.

👉 TASL stands for Title, Author, Source, and License.

👉 If a user violates the license terms, the license automatically terminates.

👉 Under Creative Commons 4.0 licenses, rights can be restored if the violation is corrected within 30 days.

👉 Creative Commons licensing does not override legal exceptions such as fair use or fair dealing.

Hashtags
#CreativeCommons #OpenAccess #LibraryScience #UGCNETLIS #CopyrightLaw #InformationScience #OER #OpenKnowledge #LISNotes #DigitalLibraries

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Created by Saket Sharma

2 months ago | [YT] | 2

SAKET SHARMA

Koha Acquisition Workflow – Important One-Liners

Acquisition Concept

👉 In Koha, the acquisition workflow follows the sequence Budget → Vendor → Basket → Order → Invoice.
👉 This workflow ensures financial accountability and systematic procurement of library materials.
👉 The acquisition module integrates financial control with bibliographic record creation.

Step 1: Budget and Fund Setup

👉 Acquisition begins with creating a Budget for a defined financial period.
👉 Budgets are usually created for annual financial cycles such as 2024–25.
👉 Each budget is divided into Funds representing subject or departmental allocations.
👉 Funds allow controlled spending for specific disciplines or collections.
👉 Planning values can be set to prevent overspending beyond allocated limits.

Step 2: Vendor Management

👉 Vendors are created under Acquisitions → New Vendor.
👉 Vendor records store supplier details such as address, discount terms, and contact information.
👉 Koha supports multi-currency transactions for international vendors.
👉 Vendor profiles can also include tax and GST configurations.

Step 3: Basket Creation

👉 A Basket represents a group of orders sent to a single vendor.
👉 Each basket is usually created for specific departments or purchase periods.
👉 Example: “Science Department Orders – October”.
👉 Baskets simplify order organization and communication with vendors.

Step 4: Adding Orders to a Basket

👉 Orders can be added directly from patron purchase suggestions submitted via OPAC.
👉 New bibliographic records can be created when the library does not already own the title.
👉 Records can also be imported using Z39.50 copy cataloguing from global databases.
👉 Vendors may supply MARC files that can be uploaded as staged records for bulk acquisitions.

👉 Each order must be linked to a specific fund for financial tracking.
👉 The List Price is entered during ordering.
👉 Koha automatically calculates the Actual Cost based on vendor discounts.

Step 5: Closing the Basket

👉 After all orders are added, the basket must be closed to finalize the purchase request.
👉 Koha can generate Purchase Order documents in PDF or CSV format.
👉 These purchase orders are sent to vendors as official order confirmations.

Step 6: Receiving Ordered Items

👉 When books arrive, staff use Receive Shipment under the vendor account.
👉 The Invoice Number and shipping charges are recorded during this step.
👉 Each item is then marked as Received in the system.

👉 During receiving, librarians assign Barcode numbers to individual items.
👉 The Call Number and Item Type are also defined at this stage.
👉 After processing, item status changes from “Ordered” to “Available” or “In Processing.”

Step 7: Invoice Processing and Finalization

👉 Final cost verification occurs during invoice processing.
👉 If the vendor price differs from the original order, the Actual Cost is updated.
👉 Once confirmed, the system marks the budget funds as spent rather than encumbered.

Important Acquisition Terms

👉 Encumbrance refers to funds reserved for orders that are not yet received.
👉 Encumbered funds ensure budget allocation is protected during the purchasing process.

👉 EDIFACT is an electronic data interchange standard used for automated order communication with vendors.

👉 Budget Mapping restricts librarians to specific funds based on their purchasing authority.

Hashtags
#KohaAcquisition #KohaILS #LibraryAutomation #LibraryScience #UGCNETLIS #LibraryManagement #LibraryTechnology #DigitalLibraries #KohaWorkflow #LISNotes

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Created by Saket Sharma

2 months ago | [YT] | 0

SAKET SHARMA

Koha Integrated Library System (ILS) – Important One-Liners

Origin and Background

👉 Koha is the world’s first open-source Integrated Library System (ILS).
👉 Koha was first launched in 2000 for the Horowhenua Library Trust in New Zealand.
👉 The word “Koha” comes from the Māori language meaning “gift” or donation.
👉 Koha is widely used for library automation in academic, public, and special libraries.

Core System Architecture

👉 Koha operates on the LAMP technology stack.
👉 Linux serves as the preferred operating system for Koha servers.
👉 Apache functions as the web server managing staff and OPAC interfaces.
👉 MariaDB/MySQL acts as the relational database management system.
👉 Perl is the primary programming language used for Koha’s core application logic.

Data Management and Metadata Standards

👉 Koha supports MARC 21 and UNIMARC metadata standards for bibliographic records.
👉 MARC-based structures ensure compatibility with international cataloguing standards.
👉 Koha implements authority control using MARC authority format.
👉 Authority control helps maintain consistent subject headings and author names.

👉 Early Koha installations used the Zebra indexing engine for search and retrieval.
👉 Modern versions are increasingly adopting Elasticsearch for faster indexing and discovery.
👉 Koha supports Unicode UTF-8 encoding for multilingual cataloguing.
👉 UTF-8 compatibility enables records in multiple scripts including Indian regional languages.

Interoperability and Web Services

👉 Koha supports Z39.50 protocol for searching remote library databases.
👉 Through Z39.50, librarians can perform copy cataloguing from global catalogues such as the Library of Congress.
👉 Koha also supports SRU/SRW protocols for web-based search and retrieval.

👉 Koha acts as a Data Provider using the OAI-PMH protocol.
👉 OAI-PMH allows metadata harvesting for union catalogues and digital repositories.

👉 SIP2 (Standard Interchange Protocol) enables integration with RFID systems and self-check machines.
👉 NCIP (NISO Circulation Interchange Protocol) allows communication between different library circulation systems.

👉 Modern Koha versions provide a RESTful API for integration with external applications.
👉 APIs allow developers to build custom services and third-party applications.

Key Operational Modules

👉 The Acquisitions Module manages budgets, vendors, orders, and invoices.
👉 The Circulation Module controls book issue, return, renewals, and fine calculations.
👉 Koha provides customizable circulation rules based on user categories and item types.

👉 The Serials Control Module manages journal subscriptions and issue tracking.
👉 It handles subscription patterns, volume numbering, and missing issue claims.

👉 The OPAC (Online Public Access Catalogue) offers a web-based discovery interface for users.
👉 OPAC supports faceted search, user reviews, tagging, and book recommendations.

👉 The Reports Module allows librarians to generate statistical and analytical reports.
👉 Advanced users can run direct SQL queries on the Koha database for customized reporting.

Hashtags
#KohaILS #LibraryAutomation #OpenSourceLibrary #LibraryScience #UGCNETLIS #DigitalLibraries #LibraryTechnology #InformationScience #LISNotes #KohaLibrary

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Created by Saket Sharma

2 months ago | [YT] | 1

SAKET SHARMA

Advanced & Obscure Concepts in Library and Information Science – One-Liners

Advanced Information Retrieval and Evaluation

👉 The Cranfield Tests were conducted by Cyril Cleverdon in the 1950s to evaluate information retrieval systems.
👉 The Cranfield experiments established Precision and Recall as the standard evaluation metrics in IR systems.
👉 TREC (Text REtrieval Conference) was initiated in 1992 by NIST to support large-scale evaluation of search technologies.
👉 TREC provides test collections, queries, and relevance judgments for retrieval research.

👉 Inverse Document Frequency (IDF) is used in TF–IDF weighting to emphasize rare but important terms in documents.
👉 TF–IDF helps search engines rank documents based on relevance to user queries.

👉 Stemming is a process that removes word endings to create a simplified root form.
👉 Example: Studying → Studi.

👉 Lemmatization identifies the dictionary base form of a word using linguistic analysis.
👉 Example: Better → Good.

Rare and Specialized Metadata Schemas

👉 VRA Core is a metadata standard designed for describing visual culture objects such as images, artworks, and architecture.
👉 Encoded Archival Description (EAD) is an XML standard used for encoding archival finding aids.
👉 EAD enables researchers to navigate archival collections through hierarchical descriptions.
👉 Darwin Core is a metadata schema used for biodiversity and biological specimen information.
👉 Darwin Core is widely used in natural history collections and biodiversity databases.
👉 PREMIS (Preservation Metadata: Implementation Strategies) records digital provenance and preservation actions.
👉 PREMIS ensures long-term authenticity and reliability of digital objects.

Psychology and Sociology of Information

👉 Information Anxiety was coined by Richard Saul Wurman.
👉 It refers to the stress caused by information overload or inability to locate needed information.

👉 Principle of Least Effort was proposed by George Zipf.
👉 It suggests that users prefer the easiest available information source rather than the most accurate one.

👉 The Matthew Effect in citations explains why well-known researchers receive disproportionate recognition and citations.
👉 The phrase reflects the idea that “the rich get richer” in scholarly recognition.

👉 Boundary Objects are tools that facilitate collaboration between different communities without requiring identical understanding.
👉 Library catalogues often function as boundary objects between librarians and researchers.

Obscure Library History and Architecture

👉 Biblio-pyrography was the historical practice of branding book edges with heated irons for ownership identification.
👉 This practice was particularly used in colonial Mexican libraries.

👉 The Book Wheel (Brazen Serpent) allowed scholars to rotate multiple books simultaneously on a circular reading desk.
👉 It enabled efficient comparative reading of several texts at once.

👉 The National Library of the Netherlands had to reinforce its floors because the weight of 42 km of books stressed the structure.
👉 This demonstrates the structural challenges of large archival collections.

👉 The Library of Celsus in Ephesus used double walls to protect scrolls from humidity and temperature changes.
👉 This design represents early architectural strategies for document preservation.

Information Economics and Library Management

👉 The Long Tail Theory suggests that digital libraries benefit from providing access to niche and low-demand materials.
👉 In digital collections, rare items collectively generate significant usage over time.

👉 Value of Information (VoI) measures the economic benefit of obtaining information before making decisions.
👉 VoI helps organizations determine the worth of investing in information resources.

👉 The Big Deal refers to bundled subscription packages of large numbers of electronic journals from publishers.
👉 Although convenient, the Big Deal model is often criticized for high costs and limited flexibility.

Hashtags
#LibraryScience #AdvancedLIS #InformationRetrieval #MetadataStandards #UGCNETLIS #InformationScience #DigitalLibraries #LibraryResearch #KnowledgeOrganization #LISStudy

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SAKET SHARMA

Unique & Rare One-Liners in Library and Information Science

Alternative Library Laws and Concepts

👉 Michael Gorman’s Five New Laws (1995) updated Ranganathan’s principles for the digital age.
👉 Gorman’s laws emphasize service to humanity, respect for knowledge formats, intelligent use of technology, free access to knowledge, and preservation of heritage.
👉 The traditional “Hush” rule in libraries became prominent during the 19th century to maintain a scholarly environment.
👉 Modern libraries are shifting toward flexible spaces with collaborative zones and multimedia rooms.
👉 The Madras Public Libraries Act, 1948 introduced the concept of Library Cess (library tax) in India.
👉 Early libraries often practiced “preservation through restriction,” including chaining books to shelves.
👉 The modern Open Access movement promotes unrestricted access to scholarly knowledge.

Unusual Library Materials and Services

👉 Some libraries lend non-book materials such as taxidermy specimens for educational purposes.
👉 The Alaska Resources Library and Information Services once allowed borrowing of animal bones and furs.
👉 The New York Public Library introduced programs lending neckties and briefcases for job seekers.
👉 Many public libraries now operate Seed Libraries, where patrons borrow seeds for gardening.
👉 Some libraries provide tool lending programs for community development.
👉 The Library of Congress produces Braille editions of popular magazines to support inclusive access to information.
👉 These initiatives reflect the idea of “Libraries of Things” beyond traditional books.

Architectural Curiosities in Libraries

👉 The Kansas City Central Library converted an old bank vault into a small theatre.
👉 The Frisco Public Library (Texas) was opened in 2023 inside a repurposed rocket factory.
👉 The W.E.B. Du Bois Library is surrounded by the myth that the building sinks due to the weight of books, though this is untrue.
👉 The Raza Library in Rampur is located in Hamid Manzil, an Indo-Saracenic architectural structure.
👉 Indo-Saracenic architecture combines Islamic, Hindu, and Victorian Gothic styles.

Historical Firsts and Milestones

👉 Zenodotus of Ephesus is considered the first recorded librarian of the Library of Alexandria.
👉 The Library of St. Catherine’s Monastery in Sinai has been operating continuously since the 6th century.
👉 The first formal library training program in India was established in Baroda State in 1911.
👉 Benjamin Franklin founded the Library Company of Philadelphia in 1731.
👉 Franklin’s library operated as a subscription library requiring a membership fee of 40 shillings.
👉 Subscription libraries were an early form of community-funded knowledge access.

Hashtags
#LibraryScience #LISNotes #LibraryHistory #UGCNETLIS #LibraryFacts #InformationScience #LibraryInnovation #Librarianship #KnowledgeAccess #LISStudy

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2 months ago | [YT] | 0

SAKET SHARMA

Famous Historical Figures Who Worked as Librarians – One-Liners

👉 Mao Zedong worked as an assistant librarian at Peking University from 1918–1919 before becoming the leader of China.
👉 Lewis Carroll, author of Alice’s Adventures in Wonderland, served as a sub-librarian at Christ Church, Oxford.
👉 J. Edgar Hoover began his career at the Library of Congress, where he learned the Dewey Decimal Classification system.
👉 Hoover later used similar classification ideas to organize the FBI Central Records System.
👉 Giacomo Casanova, the famous adventurer, spent his last 13 years as a librarian for Count Waldstein in Bohemia.
👉 Jorge Luis Borges, the renowned Argentine writer, served as Director of the National Library of Argentina.
👉 Borges earlier worked as a public librarian in Buenos Aires.
👉 Laura Bush, former First Lady of the United States, holds a Master’s degree in Library Science.
👉 Laura Bush worked as both a school librarian and public librarian.
👉 Eratosthenes, who calculated the Earth’s circumference, was the chief librarian of the Library of Alexandria.
👉 Marcel Duchamp, the famous conceptual artist, worked as a librarian at Sainte-Geneviève Library in Paris.
👉 Beverly Cleary, a Newbery Medal-winning author, began her career as a children’s librarian in Yakima, Washington.
👉 Jacob and Wilhelm Grimm, known as the Brothers Grimm, worked as librarians at the University of Göttingen.

Library Architecture and Structural Curiosities

👉 The W.E.B. Du Bois Library is the tallest library building in the United States with 26 floors.
👉 An urban legend claims its architect forgot to calculate the weight of books, causing structural issues.
👉 The Wells Library is associated with a similar myth that the building sinks due to the weight of books.
👉 These stories are mostly popular myths rather than confirmed architectural errors.

👉 The Old Cincinnati Public Library (1874) was once called the “Most Magnificent Public Library in the Country.”
👉 Despite its architectural beauty, the building was demolished in 1955.

👉 The Library of Ashurbanipal in Nineveh preserved thousands of cuneiform clay tablets.
👉 When the palace burned in 612 BC, the heat baked the tablets and preserved them for millennia.

👉 The 20 Fenchurch Street building in London, known as the “Walkie Talkie,” had a design flaw.
👉 Its curved glass façade acted like a magnifying lens that melted car parts and damaged objects on the street.

Hashtags
#LibraryHistory #LibraryScience #LISNotes #FamousLibrarians #LibraryArchitecture #UGCNETLIS #InformationScience #LibraryFacts #Librarianship #LISStudy

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Created by Saket Sharma

2 months ago | [YT] | 1

SAKET SHARMA

Library and Information Science – Technical Architecture (One-Liners)

Metadata and Encoding Standards

👉 MARC 21 (Machine-Readable Cataloging) is the standard format used for storing and exchanging bibliographic data in machine-readable form.
👉 MARC records consist of Tags (3 digits), Indicators (2 digits), and Subfields identified by $ symbols.
👉 MARC Tag 245 represents the Title Statement including title, subtitle, and statement of responsibility.
👉 MARC Tag 100 represents the Main Entry for Personal Author Name.
👉 MODS (Metadata Object Description Schema) is an XML-based metadata schema derived from MARC 21.
👉 MODS is designed to be simpler and more web-friendly than MARC.
👉 METS (Metadata Encoding and Transmission Standard) is an XML container used to package descriptive, administrative, and structural metadata.
👉 METS supports management and exchange of digital objects in digital libraries.
👉 BIBFRAME (Bibliographic Framework Initiative) was developed by the Library of Congress to replace MARC.
👉 BIBFRAME uses Linked Data and RDF to integrate library data with the Semantic Web.

Systems Interoperability and Communication

👉 Z39.50 (ISO 23950) is a client-server protocol used for searching remote library databases.
👉 Z39.50 allows cross-database searching through a single user interface.
👉 SRU (Search/Retrieve via URL) is a REST-based protocol for information retrieval.
👉 SRW (Search/Retrieve Web Service) is a SOAP-based retrieval protocol.
👉 SRU and SRW use CQL (Common Query Language) for searching bibliographic databases.
👉 OAI-PMH (Open Archives Initiative Protocol for Metadata Harvesting) enables metadata harvesting between repositories.
👉 OAI-PMH operates through Data Providers and Service Providers.

👉 NCIP (NISO Circulation Interchange Protocol) enables communication between different library systems for circulation and interlibrary loan services.
👉 SIP2 (Standard Interchange Protocol) connects Integrated Library Systems with self-check machines and automated systems.

Semantic Web and Linked Data

👉 RDF (Resource Description Framework) is the core model used for Linked Data on the Semantic Web.
👉 RDF represents information using triples: Subject → Predicate → Object.
👉 URI (Uniform Resource Identifier) uniquely identifies resources on the web.
👉 URIs enable global identification of authors, works, and concepts.
👉 SPARQL is the query language used to retrieve data stored in RDF format.
👉 SPARQL functions similarly to SQL but is designed for Linked Data environments.
👉 SKOS (Simple Knowledge Organization System) represents thesauri, taxonomies, and classification systems in RDF format.
👉 SKOS supports machine-readable representation of knowledge organization systems.

Digital Preservation and Digital Library Architecture

👉 OAIS (Open Archival Information System) Reference Model is standardized as ISO 14721.
👉 OAIS defines six functional entities: Ingest, Archival Storage, Data Management, Administration, Preservation Planning, and Access.
👉 OAIS provides a framework for long-term digital preservation systems.

👉 In the OAIS model, digital objects move through SIP → AIP → DIP stages.
👉 SIP (Submission Information Package) is the data submitted to the archive.
👉 AIP (Archival Information Package) is the preserved archival version.
👉 DIP (Dissemination Information Package) is the version delivered to users.

👉 LOCKSS (Lots of Copies Keep Stuff Safe) is a distributed digital preservation system.
👉 LOCKSS preserves content by maintaining multiple copies across different servers.

👉 Cloud-Native Integrated Library Systems (ILS) operate entirely on cloud-based microservices architecture.
👉 Examples include Alma (Ex Libris) and FOLIO (Open Source Library Platform).

Hashtags
#LibraryScience #MetadataStandards #MARC21 #LinkedData #DigitalLibraries #LibraryAutomation #UGCNETLIS #InformationScience #LISNotes #DigitalPreservation

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Created by Saket Sharma

2 months ago | [YT] | 1

SAKET SHARMA

Library Networks & Intellectual Property Rights (IPR) – Important One-Liners

Library Networks and Consortia in India

👉 INFLIBNET (Information and Library Network) was established by UGC in 1991 to connect university and college libraries in India.
👉 INFLIBNET became an Inter-University Centre of UGC in 1996.
👉 INFLIBNET promotes resource sharing, library automation, and academic networking.

👉 DELNET (Developing Library Network) was started as Delhi Library Network in 1988.
👉 DELNET was registered as a society in 1992.
👉 DELNET facilitates interlibrary loan and resource sharing among libraries in India and abroad.

👉 CALIBNET (Calcutta Library Network) was established in 1986.
👉 CALIBNET was the first metropolitan library network in India.
👉 It was funded by NISSAT (National Information System for Science and Technology).

👉 Shodhganga is a national repository of Electronic Theses and Dissertations (ETDs).
👉 Shodhganga is maintained by INFLIBNET Centre.

👉 SOUL (Software for University Libraries) is an Integrated Library Management Software developed by INFLIBNET.
👉 SOUL supports cataloguing, circulation, acquisition, serial control, and OPAC modules.

👉 UGC-Infonet Digital Library Consortium provides access to scholarly e-journals and databases for universities.
👉 It is managed by INFLIBNET under the UGC initiative.

👉 NISSAT (1977) promoted the development of library and information networks in India.
👉 NISSAT supported several metropolitan library networks across the country.

Intellectual Property Rights (IPR) and Copyright

👉 The Indian Copyright Act, 1957 is the primary law governing copyright in India.
👉 The Act came into force in January 1958.

👉 For literary, dramatic, musical, and artistic works, copyright lasts for the author’s lifetime plus 60 years.

👉 Section 52 of the Copyright Act deals with Fair Dealing provisions.
👉 Fair dealing allows use of copyrighted material for research, private study, criticism, and review.

👉 Section 57 provides Moral Rights to authors.
👉 Moral rights include the Right of Paternity (authorship) and Right of Integrity (protection against distortion).

👉 Under Section 52(1)(o), libraries can make up to three copies of a book for library use if the book is not available for sale in India.

👉 The Berne Convention (1886) is an international treaty for copyright protection.
👉 India is a member country of the Berne Convention.

👉 WIPO (World Intellectual Property Organization) is the global body dealing with intellectual property policy and services.
👉 India joined the WIPO Internet Treaties (WCT and WPPT) in 2013.

👉 The Idea–Expression Dichotomy states that copyright protects the expression of ideas, not the ideas themselves.

General Intellectual Property Terms

👉 Public Domain refers to works whose copyright has expired or never existed.
👉 Public domain materials can be freely used, reproduced, and digitized.

👉 TRIPS Agreement stands for Trade-Related Aspects of Intellectual Property Rights.
👉 TRIPS is administered by the World Trade Organization (WTO).

👉 A Patent grants exclusive rights for an invention for 20 years.

👉 A Trademark is a distinctive symbol, name, or sign used to identify goods or services.

Hashtags
#LibraryNetworks #INFLIBNET #DELNET #LibraryScience #LISNotes #UGCNETLIS #CopyrightLaw #IntellectualProperty #LibraryAutomation #InformationScience

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Created by Saket Sharma

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SAKET SHARMA

Bibliometrics, Informetrics & Information Literacy – Important One-Liners

Bibliometrics and Informetrics (Major Laws)

👉 Bradford’s Law of Scattering (1934) explains how articles on a subject are distributed across journals with a core set of highly productive journals.
👉 According to Bradford’s Law, journals can be divided into zones of decreasing productivity.
👉 Lotka’s Law (1926) describes the frequency of author productivity in scientific publications.
👉 Lotka’s Law states that authors producing n papers are approximately 1/n² of those producing one paper.
👉 Zipf’s Law (1949) explains the frequency distribution of words in a text.
👉 Zipf’s Law states that word frequency is inversely proportional to its rank in the frequency list.

👉 The term Bibliometrics was coined by Alan Pritchard in 1969.
👉 Bibliometrics involves statistical analysis of books, articles, and other publications.
👉 Librametry was introduced by S. R. Ranganathan in 1948.
👉 Librametry refers to the application of statistical and mathematical methods in library science.

👉 Impact Factor was devised by Eugene Garfield to measure journal influence.
👉 Impact Factor represents the average number of citations received by articles in a journal.
👉 h-index measures both research productivity and citation impact of scholars.

Information Literacy Models

👉 The Big6 Model was developed by Michael Eisenberg and Robert Berkowitz.
👉 The Big6 consists of six stages of information problem solving.
👉 The stages include Task Definition, Information Seeking, Location & Access, Use, Synthesis, and Evaluation.

👉 Seven Pillars of Information Literacy was developed by SCONUL (Society of College, National and University Libraries).
👉 The model defines the skills required for an information-literate individual.

👉 Information Search Process (ISP) was developed by Carol Kuhlthau.
👉 ISP describes user feelings, thoughts, and actions during the information search process.

👉 Seven Faces of Information Literacy was proposed by Christine Bruce.
👉 This model explains different ways people experience and understand information literacy.

👉 Empowering 8 Model was developed for South Asian information literacy education.
👉 It includes eight stages from identifying information needs to applying information.

Information Theory Concepts

👉 Shannon–Weaver Model is known as the mother of all communication models.
👉 The model describes linear communication from source to receiver.
👉 It introduced the concept of “Noise” in communication channels.

👉 Half-Life of Information refers to the time required for half of the literature in a field to become obsolete.
👉 This concept is commonly used in scientific and technological literature studies.

👉 Garbage In, Garbage Out (GIGO) states that poor-quality input produces poor-quality output.
👉 GIGO is a fundamental principle in data processing and information systems.

👉 Information Explosion refers to the rapid growth of published information since the mid-20th century.
👉 The term became widely used during the 1960s with the expansion of scientific literature.

Hashtags
#Bibliometrics #Informetrics #LibraryScience #LISNotes #UGCNETLIS #InformationLiteracy #ResearchMetrics #InformationScience #LibraryStudies #LISStudy

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Created by Saket Sharma

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