Abstract
Human-computer communication provides the basic mechanisms by which computer users are able to express their requirements and influence the mode of operation of sophisticated information processing machines. In the past, textual dialogue has been the primary mode of facilitating such communicative encounters. Increasingly, pictoiaal dialogue methods are being employed in order to overcome some of the limitations and inefficiencies of textual exchange. This paper describes and discusses some of our work relating to the use of pictorial dialogue methods to support: (1) end-user interaction with electronic books; (2) mixed-mode consultations with expert systems; and (3) multi-media instruction through the use of computer assisted learning techniques.
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