Document (#12395)

Author

Davis, C.H.
Shaw, D.

Title

Comparison of retrieval system interfaces using an objective measure of screen design effectiveness

Source

Library and information science research. 11(1989) no.4, S.325-334

Year

1989

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

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