Reviews programs aimed toward building of national database--RECON Working Task Force's Study of feasibility of converting the retrospective records of the Library of Congress, Cooperative MARC (COMARC), REMARC, and CONSER (continuing effort to build national database of serial records). Current efforts contributing to the evolving network are…

The objective relevance of a document to a request is crucial to the design and testing of bibliographic retrieval systems, while subjective relevance is paramount in the use of such systems. The distinction provides a rationale for a trial-and-error mode of interaction with information systems. (Author/EM)

Twenty-one libraries in Library Computer System participated in collection overlap study. Findings of random sample representing 1% of each collection indicate that high percentage of titles, 69.4%, occurred only once in network and that percentage of each library's collection unique to that library, ranged from 6.1% to 68.4%. (21 references) (EJS)

Reports the results of a study comparing the performance of commercial document suppliers with the performance of traditional interlibrary loan. The discussion covers comparisons of speed, cost, the effect of publication characteristics on speed and cost, and success rates, as well as implications of the findings for interlibrary loan services.…