Protein Annotators' Assistant (PAA) is a software system which assists protein annotators in assigning functions to newly sequenced proteins. PAA employs a number of information retrieval techniques in a novel setting and is thus related to text categorization, where multiple categories may be suggested, except that in this case none of the…

Describes an experiment in which presentation size and text length is varied in a HyperCard application. Students performed a fact-retrieval task from a reference handbook. No interaction is found between these two independent variables. Performance is significantly better for the longer texts, but no significant difference is found for the two…

Describes the development of a computer-supported cooperative problem-solving environment designed to help librarians and remote access users work together in performing an online search. Results of a study of graduate students indicate that groups using the computer demonstrated more effective skills than those performing the same tasks face to…

Describes the design of a prototype multiauthor multimedia document production (MAMMDP) system. Discusses the problems of finding an appropriate task analysis technique, and introduces background concepts. Examines how the system's tasks were analyzed and represented during the early stages of the design. (AEF)