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Integrating formal predictions of interactive system behaviour with user evaluation

Lookup NU author(s): Professor Michael Harrison

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Abstract

Itiswellknownthathumanerrorintheuseofinteractivedevicescan have severe safety or business consequences. It is important therefore that aspects of the design that compromise the usability of a device can be predicted before deployment. A range of techniques have been developed for identifying poten- tial usability problems including laboratory based experiments with prototypes and paper based evaluation techniques. This paper proposes a framework that in- tegrates experimental techniques with formal models of the device, along with assumptions about how the device will be used. Abstract models of prototype de- signs and use assumptions are analysed using model checking techniques. As a result of the analysis hypotheses are formulated about how a design will fail in terms of its usability. These hypotheses are then used in an experimental environ- ment with potential users to test the predictions. Formal methods are therefore integrated with laboratory based user evaluation to give increased confidence in the results of the usability evaluation process. The approach is illustrated by ex- ploring the design of an IV infusion pump designed for use in a hospital context.


Publication metadata

Author(s): Ruksenas R, Curzon P, Harrison MD

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: IFM 2013: Proceedings of the 10th International Conference on Integrated Formal Methods

Year of Conference: 2013

Pages: 238-252

ISSN: 0302-9743

Publisher: Springer

URL: http://dx.doi.org/10.1007/978-3-642-38613-8_17

DOI: 10.1007/978-3-642-38613-8_17

Library holdings: Search Newcastle University Library for this item

Series Title: Lecture Notes in Computer Science

ISBN: 9783642386138


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