Document (#6287)

Author
Tenopir, C.
Hover, K.
Title
When is the same database not the same : database differences among systems
Source
Online. 17(1993) no.4, S.20-27
Year
1993
Abstract
Academic and special research libraries in the US and Canada access on average 7,4 online systems. This probably doubles or triples when including CD-ROMs and locally loaded databases. Examines the many ways in which online versions of databases can vary on different systems. Discusses the differences of updating, dates covered, price, subfile structure, field subdivisions, content or inclusion, support features and system search features. Provides statistics on these differences

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