Seeing the woods for the trees: the problem of information inefficiency and information overload on operator performance

Dadashi, Nastaran and Golightly, David and Sharples, Sarah (2017) Seeing the woods for the trees: the problem of information inefficiency and information overload on operator performance. Cognition, Technology and Work . ISSN 1435-5566

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Abstract

One of the recurring questions in designing dynamic control environments is whether providing more information leads to better operational decisions. The idea of having every piece of information is increasingly tempting (and in safety critical domains often mandatory) but has become a potential obstacle for designers and operators. The present research study examined this challenge of appropriate information design and usability within a railway control setting. A laboratory study was conducted to investigate the presentation of different levels of information (taken from data processing framework, Dadashi et al., 2014) and the association with, and potential prediction of, the performance of a human operator when completing a cognitively demanding problem solving scenario within railways. Results indicated that presenting users only with information corresponding to their cognitive task, and in the absence of other, non task-relevant information, improves the performance of their problem solving/alarm handling. Knowing the key features of interest to various agents (machine or human) and using the data processing framework to guide the optimal level of information required by each of these agents could potentially lead to safer and more usable designs.

Item Type: Article
Keywords: Human computer interaction; Decision support system; Usability engineering
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
Identification Number: 10.1007/s10111-017-0451-1
Depositing User: Eprints, Support
Date Deposited: 21 Nov 2017 08:50
Last Modified: 29 Nov 2017 04:17
URI: http://eprints.nottingham.ac.uk/id/eprint/48288

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