| Document ID (ISN) | 111314 |
| CIS number |
10-0883 |
| ISSN - Serial title |
0169-8141 - International Journal of Industrial Ergonomics |
| Year |
2011 |
| Convention or series no. |
|
| Author(s) |
Leong C.K.W., Hoffmann E.R., Good M.C. |
| Title |
Ballistic movements on data-entry keypads |
| Bibliographic information |
2011, Vol.41, p.180-190. Illus. 27 ref. |
| Abstract |
Research to date on movement times on data-entry keypads has assumed that the movements are made under visual control. However this is often not the case. A survey of commonly used keypads on devices such as mobile phones and ATMs shows that there is a need to study movement times when the index of difficulty values are less than those for which movements are likely to be made under visual control. A series of experiments on simulated and real keypads indicates that the ballistic form of movement is generally valid and may be modelled by a modification of the ballistic movement time model. A model is developed for the time required to complete sequences of number entries containing up to five numbers. In this model, the movement times are related to the square-root of the sum of the movement amplitudes. |
| Descriptors (primary) |
data processing equipment; keyboard operations; cognitive performance; body mechanics |
| Descriptors (secondary) |
ergonomics; mathematical models |
| Document type |
D - Periodical articles |
| Subject(s) |
Ergonomics and work organization
|
| Broad subject area(s) |
Physiology, ergonomics
|
| Browse category(ies) |
Ergonomics
|
