Because the complex link and node structure awaiting users can lead them into becoming lost in hyperspace and cause them cognitive overload, navigating the hypertext system is often not an easy task, especially for novices. They may have difficulty perceiving a structure of an entire system, locating specific information, or using a navigational…

This research begins to refine a cognitive model of interactive information seeking for use in the design of information retrieval (IR) systems. The research reported in this paper critically examines several interactive information seeking and retrieval models that have emerged over the last two decades. Building primarily on the stratified…

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…