An automatic Drag-and-Drop assistive program developed to assistive people with developmental disabilities to improve Drag-and-Drop efficiency.
ABSTRACT The latest researches adopted software technology to improve pointing performance; however, Drag-and-Drop (DnD) operation is also commonly used in modern GUI programming. This study evaluated whether two children with developmental disabilities would be able to improve their DnD performance, through an Automatic DnD Assistive Program (ADnDAP). At first, both participants had their baseline sessions. Then the first participant entered into intervention. New intervention began with the second participant when his performance was consolidated. Finally, maintenance phase occurred with both participants, in which their DnD performance improved significantly. Data showed that both participants improved their DnD efficiency with the assistance of ADnDAP, and remained highly successful through maintenance phase. Implications of the findings are discussed.
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ABSTRACT: Because there is little empirical data available on how well young children are able to use a computer mouse, the present study examined their proficiency in clicking on small objects at various positions on the screen and their skill in moving objects over the screen, using drag-and-drop and click-move-click. The participants were 104 children from Kindergarten 2 and Grade 1. The results show that children in Kindergarten 2 clicked and moved slower than children in Grade 1. Nearly all of the children were able to click within 3mm horizontally and 6mm vertically from the centre of a 3mm target. The findings also demonstrate that in educational software drag-and-drop is the most appropriate movement procedure as it was found to be faster than click-move-click and resulted in fewer interaction errors. Interesting differences between horizontal and vertical movements were found. It is concluded that young children are generally well capable of using a mouse to operate educational software, making this a suitable input device for such applications.Computers & Education. 01/2007; 48:602-617.
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ABSTRACT: This study evaluated whether two people with multiple disabilities and minimal motor behavior would be able to improve their pointing performance using finger poke ability with a mouse wheel through a Dynamic Pointing Assistive Program (DPAP) and a newly developed mouse driver (i.e., a new mouse driver replaces standard mouse driver, changes a mouse wheel into a thumb/finger poke detector, and intercepts mouse action). Initially, both participants had their baseline sessions. Then intervention started with the first participant. When his performance was consolidated, new baseline and intervention occurred with the second participant. Finally, both participants were exposed to maintenance phase, in which their pointing performance improved significantly. Both participants improved their pointing efficiency with the use of DPAP and remained highly successful through maintenance phase. Implications of the findings are discussed.Research in developmental disabilities 08/2009; 30(6):1378-87. · 4.41 Impact Factor
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ABSTRACT: We measured the force applied to a touchpad during pointing tasks for large and small targets. A mouse was also used as a baseline condition. Our set-up to measure force included a Plexiglas plate mounted on a high-sensitivity three-axis strain gauge connected to an instrumentation amplifier and a data acquisition computer. The devices were positioned and operated on top of the plate with the selection button removed and actuated by the opposite hand. An experiment used 12 participants performing point-select tasks in conformance with ISO 9241-9. At the terminal phase of the selection tasks, the applied force with the touchpad was lower than that recorded with the mouse. These differences may be the source of overall performance differences between the two devices. It is suggested that the detected finger force should be a variable in the touchpad's transfer function to afford a better blend of coarse and fine positioning strategies, with the goal being to bring the touchpad more inline with the mouse in overall user performance. Relevance to industry It reports measurements of applied force on the touchpad and mouse pointing devices; demonstrates different strategies employed by users in the final phase of cursor positioning in target selection tasks; presents opportunities to improve cursor positioning with touchpads through a transfer function optimized for the applied finger force on the pad surface. r 2002 Elsevier Science B.V. All rights reserved.International Journal of Industrial Ergonomics 01/2002; 29:171-182. · 1.21 Impact Factor