Presents MARC database statistics for use in planning and processing files, selection of subsets, and estimating file growth rates. Statistics are provided on record length, field tag occurrence, data element length per field tag, and distribution of records by Dewey Decimal Division and Library of Congress class code. (Author/RAA)

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)