As a continuation of research into online public access catalog systems (OPAC's), this study focused on the actual use of OPAC's and on refinement of the methodologies used in carrying out transaction analysis studies. Current patron use patterns were obtained via machine-readable catalogs from four online public catalog systems: The Library of…

Reviews pilot project at the University of Southern California to convert the traditional card catalog to a COM catalog. This involved identification of essential and nonessential catalog data elements and assessment of users' reaction toward the sudden change in form and content of the catalog. (CWM)

This report focuses on a discussion of findings from analyses of computer transaction logs contributed by four of the online catalog systems used in the Public Access Project. It supplements the analyses of User and Non-User Questionnaires by providing analyses of data from the systems themselves. The four systems contributing data to this…

Designed for use by study coordinators, library supervisors, and data collectors, this manual is the basic reference and training document from the 1982 field survey of public online catalog users and nonusers in 31 U.S. research, academic, community college, public, and governmental libraries. The field survey was coordinated by the Research…