Distinguishes between two basic types of interaction with online cataloging systems: preparation of bibliographic record offline by cataloger followed by online entry by clerk and interactive consultation by cataloger of online catalog while entering records. The Dobis/Libis system, authority files, code tables, command chaining, multidimensional…

Briefly reviews history of library automation before discussing factors that libraries should consider before choosing to go online (collection size, machine-readable database, computer equipment, costs), and features of online catalogs (database organization, search features, authority files, display options). Information about selected online…