Describes the research objectives, rationale, methodology, and findings of a model program developed at the Northwestern University Library, which examined whether online catalogs require instruction and, if so, how that instruction would be best delivered. (CLB)

Reports the rationale, design, implementation, and results of an examination of the impact of online subject catalogs on users by comparing their behaviors before and after catalog installation. Evaluation criteria included volume of use, types of searches, use of other catalogs, search time, user satisfaction, and need for assistance. (CLB)

Reviews recent and current research and development projects in the United Kingdom dealing with online information systems. Main areas of research (systems design, impact on user behavior and organizational structure, ergonomics and bibliographic factors) and research techniques (features analysis, transaction log analysis, surveys and comparative…

Describes the design and operation of a prototype online catalog; reviews research which evaluated the system in terms of types of searches and success rates; and offers suggestions for enhancing subject access, including automatic stemming, synonym tables and cross-reference lists, and relevance feedback mechanisms. (CLB)