Discusses the definition of an online library catalog; five factors to be considered by the online catalog designer; user-computer communication (error messages, help screens, prompts, unnatural language); online tutorials and offline instruction offered by bibliographic instruction librarians; and the current situation. Nine references are…

Describes a study conducted at Ohio State University that used data obtained from the interlibrary loan process to determine why some users failed to find existing entries in the online library catalog. User errors as opposed to catalog errors are examined, and implications for bibliographic instruction are suggested. (eight references) (LRW)

Reports on the results of two experiments testing the effectiveness of a concept-based computer tutorial for OPAC (online public access catalog) users. Factors that may have caused differences in results, including OPACs used in the experiments and the participants' different ability levels, are discussed. Findings are related to similar studies.…

Presents a methodology for describing, analyzing, and evaluating the public service functions of serial file systems, and describes a user study conducted in a university departmental library to determine the efficiency and effectiveness of its system in enabling students new to the library to locate known-items in the serials collection. (CDD)