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  • × author_ss:"Davis, C.H."
  • × year_i:[1980 TO 1990}
  1. Davis, C.H.; Shaw, D.: Comparison of retrieval system interfaces using an objective measure of screen design effectiveness (1989) 0.02
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    Abstract
    Many evaluations of screen design for computer system interfaces are subjective. At best, they consist of sophisticated measures of user behaviour based on instruments devised by cognitive scientists: at worst, they represent only the preconceived notions of software designers. 2 straightforward experiments are described that use tallies of keyboarding errors as a measure of interface effectiveness. By programming the computer to keep such tallies during the input of search logic for a retrieval system, it is possible to obtain objectives and empirically based data for comparing the effectiveness of different interface designs