Error by design: methods for predicting device usability


Stanton, Neville A. and Baber, Christopher (2002) Error by design: methods for predicting device usability. Design Studies, 23, (4), 363-384. (doi:10.1016/S0142-694X(01)00032-1).

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Description/Abstract

This paper introduces the idea of predicting ‘designer error’ by evaluating devices using Human Error Identification (HEI) techniques. This is demonstrated using Systematic Human Error Reduction and Prediction Approach (SHERPA) and Task Analysis For Error Identification (TAFEI) to evaluate a vending machine. Appraisal criteria which rely upon user opinion, face validity and utilisation are questioned. Instead a quantitative approach, based upon signal detection theory, is recommended. The performance of people using SHERPA and TAFEI are compared with heuristic judgement and each other.

The results of these studies show that both SHERPA and TAFEI are better at predicting errors than the heuristic technique. The performance of SHERPA and TAFEI are comparable, giving some confidence in the use of these approaches. It is suggested that using HEI techniques as part of the design and evaluation process could help to make devices easier to use.

Item Type: Article
ISSNs: 0142-694X (print)
1872-6909 (electronic)
Keywords: design methods, errors, psychology of design, user behaviour
Subjects: B Philosophy. Psychology. Religion > BF Psychology
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: University Structure - Pre August 2011 > School of Civil Engineering and the Environment
Item ID: 74677
Date Deposited: 11 Mar 2010
Last Modified: 02 Mar 2012 12:42
Contributors: Stanton, Neville A. (Author)
Baber, Christopher (Author)
Date: July 2002
Status: Published
URI: http://eprints.soton.ac.uk/id/eprint/74677

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