LAYERED PROTOCOLS IN VOICE INTERACTION WITH COMPUTERS (paper presented at AGARD AMP Symposium, Toronto April 86)

Authors
  1. Taylor, M.M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The Layered Protocol model for human-computer interfaces is described, with special reference to the problems of voice input and output. In a layered protocol, each level passes virtual messages back and forth between human and computer. These virtual messages are realized in the form of interchanges at the level below. The protocol at a level is analogous to the syntax of a sentence, in that it is the method by which the content of a message can be given an agreed interpretation. Each protocol can be designed or evaluated independently of all the others in an interface. The stability of a protocol is determined by its response delays and by the channel capacity of the lower-level protocols that support its messages. Sometimes an unstable protocol can be stabilized and speeded by reducing the message rate of the supporting protocols. Users have been observed to do this intuitively. TRUNCATED
Report Number
DCIEM-86-R-15 —
Date of publication
01 Jan 1986
Number of Pages
10
DSTKIM No
87-01125
CANDIS No
49968
Format(s):
Hardcopy;Originator's fiche received by DSIS

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