Frias, J.A.: ¬La estructura conceptual del registro bibliografico : una revision (1996)
0.01
0.009475192 = product of:
0.03790077 = sum of:
0.03790077 = weight(_text_:library in 4618) [ClassicSimilarity], result of:
0.03790077 = score(doc=4618,freq=4.0), product of:
0.1317883 = queryWeight, product of:
2.6293786 = idf(docFreq=8668, maxDocs=44218)
0.050121464 = queryNorm
0.28758827 = fieldWeight in 4618, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.6293786 = idf(docFreq=8668, maxDocs=44218)
0.0546875 = fieldNorm(doc=4618)
0.25 = coord(1/4)
- Abstract
- It is assumed that the conceptual structure of bibliographic records is based on the knowledge of user needs. In applying the entity-relationship model to the library catalogue the authority file and bibliographic records can be viewed as attributes, and the links between records and elements as relationships. Outlines the bibliographic relationships of the UNIMARC format, the analysis of hierarchical relationships carried out by Goosens and Mazur-Rzesos, and the typology of bibliographic documents established by McCallum. Presents 7 types of relationships developed by Tillet and gives results of an empirical study carried out to establish the extent and features of bibliographic relationships in the computerized catalogue of the Library of Congress
