Usability and self-service information technology: cognitive engineering in product design and evaluation

Graham I. Johnson*, Mark G. Westwater

*Corresponding author for this work

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Self-service products such as automatic teller machines are becoming more complex as they support new services, are being used in new environments, and employ new technologies. End-users' expectations of self-service products also are being raised as they gain more experience with interactive technologies. This paper describes the cognitive engineering activities of self-service information technology, including end-user perceptions, performance, and satisfaction. Such issues as specifying usability at concept stages, integrating prototype evaluations, and incorporating design recommendations also are discussed. In addition, the paper presents practical methods to design self-service products, including heuristic usability evaluations, 'Wizard of Oz' investigations, and formal task-based evaluations. The paper also draws upon a number of usability studies conducted by self-service product and advanced technology developers.

Original languageEnglish
Pages (from-to)64-73
Number of pages10
JournalAT&T Technical Journal
Volume75
Issue number1
DOIs
Publication statusPublished - 1 Jan 1996
Externally publishedYes

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