This review of the process of retrospective conversion (recon)--conversion of existing bibliographic records into machine-readable form--notes options and services (bibliographic utilities, commercial vendors); new technologies (microcomputer and optical-disc-based systems); collaboration and a coordinated recon strategy; cooperative efforts; and…

Discussion of library information systems focuses on the idea of including user-supplied data (USD) in libraries' automated catalogs. Hypertext is mentioned, the information explosion and the ability to selectively retrieve information is considered, and the value of user input in evaluating the relevance of material is discussed. (12 references)…