An investigation of the relationship between similarity in cognitive processing and time-sharing performance in a computer-windowing environment

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Title: An investigation of the relationship between similarity in cognitive processing and time-sharing performance in a computer-windowing environment
Author: Eaglin, Jennifer Willis
Abstract: Recent advancements in computer systems have led to highly complex human -computer interfaces . One of the most notable developments is the multiple -window display technology which allows the user of a computer generated display to simultaneously access and act upon multiple sources of information (Gaylin , 1986 ) . Although preliminary research involving computer windowing has been favorable , little research is available concerning the effects of window management techniques on operator performance involving complex , concurrent task combinations . Furthermore , some information processing theories indicate that human time -sharing capabilities may be affected by various task factors . This study examined possible performance variations that may result from combinations of cognitive tasks presented via computer generated multiple -window displays . The experiment employed a computerized assessment battery . Complex Cognitive Assessment Battery (CCAB ) , to generate four sets of dual tasks that varied in terms of cognitive processing similarity . The results suggested that similarity of cognitive processes affected time -sharing task performance . Specifically , subjects' performances were not affected by task similarity in the single -task conditions ; however , performance levels for one of the dual tasks decreased as the similarity of cognitive processes in the multi -task conditions decreased . Additionally , test assessment procedures significantly affected subjects' response strategies . Subjects performed tasks with freestyle solutions more slowly but more accurately than tasks with multiple -choice answers . These findings were translated into design considerations for real -world systems .
URI: http : / /hdl .handle .net /2346 /14197
Date: 1994-05

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An investigation of the relationship between similarity in cognitive processing and time-sharing performance in a computer-windowing environment. Doctoral dissertation, Texas Tech University. Available electronically from http : / /hdl .handle .net /2346 /14197 .

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