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| Titel: |
Human factors design considerations for public videotex input devices |
| Auteur: |
Goodman, D. Dickinson, J. Francas, M. J. |
| Verschenen in: |
Behaviour & information technology |
| Paginering: | Jaargang 4 (1985) nr. 3 pagina's 189-200 |
| Jaar: |
1985-07-01 |
| Inhoud: |
Eight experiments which formed an integral part of a comprehensive human factors investigation on the design of an input device for public videotex services are reported. Results of the first phase led to the design and construction of two simple keypad devices: a linear configuration, with function keys and numerics arranged in horizontal rows, and a square arrangement, with the function keys clustered around a touch-telephone numeric layout. Evaluation of these keypads with 130 novice users was carried out in Phase Two. While there was little difference in performance between the two pads, an interaction between user preference and duration of use was apparent. A slight preference was indicated for the linear pad on initial presentation but preference shifted towards the square arrangement as the duration of use increased. In the third, and major, phase of the research programme, the two simple keypads were compared with a small alphanumeric keypad and a full-sized keyboard. Results showed that novice users consistently performed best with the simple pads and showed a clear preference for these devices over the alphanumeric keypad and full keyboard. The experienced users, who had been trained on the full-sized keyboard, showed no advantage in performance with this device over the simple pads or the alphanumeric keypad but did indicate a clear preference for the keyboard. These results confirm that, with respect to input devices for public videotex systems, differential requirements exist for different types of users. For a diverse group such as the general public, a minimal function keypad appears to be the best compromise device for simple information retrieval tasks. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 9 gevonden artikelen
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