Selasa, 18 Oktober 2011

Software accessibility

18.35 | Diposting oleh Unknown

Software API exist to allow assistive technology products (like screen readers, Text-to-speech, etc.) to work with software. The current or past APIs are:
Aaccessibility Software can also make input devices easier to use at the user level:
  • Keyboard shortcuts and MouseKeys allow the user to substitute keyboarding for mouse actions. Macro recorders can greatly extend the range and sophistication of keyboard shortcuts.
  • Sticky keys allows characters or commands to be typed without having to hold down a modifier key (Shift, Ctrl, Alt) while pressing a second key. Similarly, ClickLock is a Microsoft Windows feature that remembers a mouse button is down so that items can be highlighted or dragged without holding the mouse button down throughout.
  • Customization of mouse or mouse alternatives' responsiveness to movement, double-clicking, and so forth.
  • ToggleKeys is a feature of Microsoft Windows 95 onwards. A high sound is heard when the CAPS LOCK, SCROLL LOCK, or NUM LOCK key is switched on and a low sound is heard when any of those keys are switched off.
  • Customization of pointer appearance, such as size, color and shape.
  • Predictive text
  • Spell checkers and grammar checkers
Other approaches that may be particularly relevant to users with a learning disability include:
  • Cause and effect software[4]
  • Switch accessible software
  • Hand-eye co-ordination skills software
  • Diagnostic assessment software
  • Mind mapping software
  • Study skills software
  • Symbol-based software[5]
  • Text-to-speech
  • Touch typing software
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