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Evaluation of Mouse, Rate-Controlled Isometric Joystick, Step Keys, and Text Keys for Text Selection on a CRT

Evaluation of Mouse, Rate-Controlled Isometric Joystick, Step Keys, and Text Keys for Text... Four devices are evaluated with respect to how rapidly they can be used to select text on a CRT display. The mouse is found to be fastest on all counts and also to have the lowest error rates. It is shown that variations in positioning time with the mouse and joystick are accounted for by Fitts' Law. In the case of the mouse, the measured Fitts's Law slope constant is close to that found in other eye-hand tasks leading to the conclusion that positioning time with this device is almost the minimal achievable. Positioning time for key devices is shown to be proportional to the number of keystrokes which must be typed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ergonomics Taylor & Francis

Evaluation of Mouse, Rate-Controlled Isometric Joystick, Step Keys, and Text Keys for Text Selection on a CRT

Ergonomics , Volume 21 (8): 13 – Aug 1, 1978

Evaluation of Mouse, Rate-Controlled Isometric Joystick, Step Keys, and Text Keys for Text Selection on a CRT

Ergonomics , Volume 21 (8): 13 – Aug 1, 1978

Abstract

Four devices are evaluated with respect to how rapidly they can be used to select text on a CRT display. The mouse is found to be fastest on all counts and also to have the lowest error rates. It is shown that variations in positioning time with the mouse and joystick are accounted for by Fitts' Law. In the case of the mouse, the measured Fitts's Law slope constant is close to that found in other eye-hand tasks leading to the conclusion that positioning time with this device is almost the minimal achievable. Positioning time for key devices is shown to be proportional to the number of keystrokes which must be typed.

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References (16)

Publisher
Taylor & Francis
Copyright
Copyright Taylor & Francis Group, LLC
ISSN
1366-5847
eISSN
0014-0139
DOI
10.1080/00140137808931762
Publisher site
See Article on Publisher Site

Abstract

Four devices are evaluated with respect to how rapidly they can be used to select text on a CRT display. The mouse is found to be fastest on all counts and also to have the lowest error rates. It is shown that variations in positioning time with the mouse and joystick are accounted for by Fitts' Law. In the case of the mouse, the measured Fitts's Law slope constant is close to that found in other eye-hand tasks leading to the conclusion that positioning time with this device is almost the minimal achievable. Positioning time for key devices is shown to be proportional to the number of keystrokes which must be typed.

Journal

ErgonomicsTaylor & Francis

Published: Aug 1, 1978

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