Standing at a kiosk: Effects of key size and spacing on touch screen numeric keypad performance and user preference.
Touch screen input keys compete with other information for limited screen space. The present study estimated the smallest key size that would not degrade performance or user satisfaction. Twenty participants used finger touches to enter one, four or 10 digits in a numeric keypad displayed on a capac...
| Publicado en: | Ergonomics Vol. 47; no. 13; pp. 1406 - 1424 |
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| Autores principales: | , |
| Formato: | clinical trial research Journal Article |
| Publicado: |
Taylor & Francis Ltd
10/22/2004
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106083404&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106083404 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00140139 ERO jtl: Ergonomics issn: 00140139 maglogo: Y pubinfo: dt: 10/22/2004 vid: 47 iid: 13 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 106083404 106083404 2009401081 10.1080/00140130410001724228 NLM15513716 106083404 ppf: 1406 ppct: 18 formats: tig: atl: Standing at a kiosk: Effects of key size and spacing on touch screen numeric keypad performance and user preference. aug: au: Colle H Hiszem K sug: subj: Computer Terminals Data Display Task Performance and Analysis Adolescence Adult Clinical Trials Equipment Design Female Male Reaction Time Human Adolescent: 13-18 years Adult: 19-44 years Female Male ab: Touch screen input keys compete with other information for limited screen space. The present study estimated the smallest key size that would not degrade performance or user satisfaction. Twenty participants used finger touches to enter one, four or 10 digits in a numeric keypad displayed on a capacitive touch screen, while standing in front of a touch screen kiosk. Key size (10, 15, 20, 25 mm square) and edge-to-edge key spacing (1, 3 mm) were factorially combined. Performance was evaluated with response time and errors, and user preferences were obtained. Spacing had no measurable effects. Entry times were longer and errors were higher for smaller key sizes, but no significant differences were found between key sizes of 20 and 25 mm. Participants also preferred 20 mm keys to smaller keys, and they were indifferent between 20 and 25 mm keys. Therefore, a key size of 20 mm was found to be sufficiently large for land-on key entry. pubtype: Academic Journal doctype: clinical trial research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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