Configuring a numeric keypad for a touch screen

Autor:	Gale L. Martin
Rok vydání:	1988
Předmět:	Computer science Physical Therapy Sports Therapy and Rehabilitation Human Factors and Ergonomics Keying Speech synthesis Computer terminal computer.software_genre Square (algebra) Standard deviation Dimension (vector space) Computer graphics (images) Numeric keypad Point (geometry) computer
Zdroj:	Ergonomics. 31:945-953
ISSN:	1366-5847 0014-0139
DOI:	10.1080/00140138808966733
Popis:	This paper reports on a study comparing keying accuracy and speed for eight different numeric keypad configurations on a touch screen. Using touch-sensitive keypads displayed on a computer terminal, operators entered numbers presented to them through a speech synthesizer. Dependent measures collected were keying rates, errors, and the x- and y-dimension standard deviations from the centre point of the key. The primary finding was that keypads with square keys resulted in improved speed and a higher degree of accuracy than do keypads with regular keys (either a long horizontal dimension or a longer vertical dimension). Spread-out versions of the keypads (inter-key spacing = 1·3 cm) did not yield superior performance compared with compressed versions (inter-key spacing = 0·6 cm).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::84274f1adb9cdf70708ab6246f1b9728 https://doi.org/10.1080/00140138808966733 Zobrazit plný text záznamu