Library performance criteria used by managers in 62 academic, special, and public libraries are analyzed to measure the extent to which criteria proposed in the literature are actually used, to identify types of criteria in use, and to develop guidelines for future criterion selection. (Author)

Describes a user-oriented model for setting priorities for services in a medium-size scientific/technical research library. A survey of the research staffs of three organizations regarding their conception of library priorities is compared with the budgets and opinions of the three library directors. The questionnaire used is included. (Author/JD)