Using a basic vocabulary and simple model, this paper discusses four options available at the level of the individual bibliographic database for resolving conflicts in MARC exchange: addition, deletion, modification, and superimposition. Costs and benefits of each option and impacts on MARC exchange are noted. (Fourteen references are cited.) (EJS)

In comparing methods of allocating service transaction costs among member libraries of interlibrary systems, questions of how costs are to be estimated, and what cost elements are to be included are critical. Different approaches of estimation yield varying results. Actual distribution of units accounts for greatest variance in allocations. (CDD)

Traces history of pilot projects (including state aid) and describes new projects, both pilot projects that were continued and new projects mandated by 1984 legislation. New projects are compared to permanent systems in terms of interlibrary loans, union catalogs, delivery systems, collection standards, and other areas. (CLB)