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MARC 21 Tagging: A Study of Errors in OPAC Library Catalogues

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dc.contributor.authorShrestha,Sabina
dc.contributor.authorGautam,Sarita
dc.date.accessioned2025-12-14T03:24:18Z
dc.date.available2025-12-14T03:24:18Z
dc.date.issued2025-09-01
dc.descriptionThis thesis written about Online catalogues, MARC formats, Cataloging–Errors, Machine readable bibliographic data, Libraries–Automation
dc.description.abstractThe thesis entitled “MARC 21 Tagging: A Study of Errors in OPAC Library Catalogues” explores the frequency and nature of cataloging errors on the quality of bibliographic data in Online Public Access Catalogs (OPACs). Errors in cataloging can significantly hinder the effectiveness of OPACs, degrade catalog quality, and undermine adherence to professional standards. There are no earlier studies in Nepal about the library cataloging errors. This study has analyzed and quantified these errors in OPAC data to improve its reliability. The main purpose of this study is to examine the quality of catalogue records and the error rate of the five libraries in Kathmandu Valley. This study identifies the most and less occurring error tags in MARC 21. For study 250 catalogue records were selected from the Central Department of Library and Information Science (CDLIS) Library, Tribhuvan University Central Library (TUCL), Nepal National Library (NNL), Kaiser Library (KL), and Thapathali Engineering Campus Library (TECL) using a purposive random sampling method. The data were collected using a Library of Congress MARC 21 checklist, which was prepared based on the Library of Congress standards. The findings show the most error tag identified was Statement of responsibility (MARC tag 245$c), which accounted for 219 (17.51%) of the total errors. Conversely, the least error tag identified was Classification Number (MARC tag 082$a), containing only 6 (0.48%) errors. Among the institutional level, TECL had the highest overall error count with 365 errors (29.18% of the total), while CDLIS demonstrated the lowest number of errors, with 162 (12.95%). The most repeated errors were Entry Omission (EO), recorded 511 errors. The least frequent error was Hyphens Error (HE), with 38 errors. The study emphasizes the need for enhanced professional training, establish quality control procedures, develop a style guide, authority files, and regular check, review, and update existing records of their cataloguing systems to reduce errors and improve the overall accuracy of bibliographic records. Key Words: Online catalogues, MARC formats, Cataloging–Errors, Machine readable bibliographic data, Libraries–Automation
dc.description.sponsorshipNo any sponsor
dc.identifier.citationShrestha,Sabina(2025).MARC 21 Tagging: A Study of Errors in OPAC Library Catalogues.[Master's thesis.TU kirtipur].https//elibrary.tucdlis.edu.np/
dc.identifier.urihttps://hdl.handle.net/20.500.14573/360
dc.language.isoen
dc.subject1 Online catalogues
dc.subject2 MARC formats
dc.subject3 Cataloging–Errors
dc.subjectMachine readable bibliographic data
dc.subjectLibraries–Automation
dc.titleMARC 21 Tagging: A Study of Errors in OPAC Library Catalogues
dc.typeThesis

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