The cost-of-knowledge characteristic function

Stuart K. Card, Peter Pirolli, Jock D. Mackinlay
1994 Conference companion on Human factors in computing systems - CHI '94  
In this paper we present a method, the Cost-of-Knowledge Characteristic Function, for characterizing information access from dynamic displays. The paper works out this method for a simple, but important, class of dynamic displays called direct-walk interactive information visuatizations, in which information is accessed through a sequence of mouse selections and key selections. The method is used to characterize a simple calendar task for an application of the Information Visualizer, to compute
more » ... the changes in characterization as the result of possible program variants, and to conduct empirical comparison between different systems with the same function.
doi:10.1145/259963.260366 dblp:conf/chi/CardPM94 fatcat:m7wbry4bnzellllsryexli7wr4