Accessibility means planning and developing applications in a way in which everyone will be able to use them, including blind, persons with low vision, with motion disorders, etc.
Screen Reader Support
Mac OS X VoiceOver
The screen reader for the vast majority of users in Mac OS X is VoiceOver which comes pre-installed in Mac OS X. To activate it go to Settings->Universal Access and turn VoiceOver on. It couldnt be any simpler. Using it is also mostly easy and intuitive.
Orca for Linux
Accessibility Inspector Tools
Mac OS X
In /Developer/Applications/Utilities/Accessibility Tools/ there is an Accessibility Inspector which will be very useful when developing in this platform.
Microsoft Active Accessibility
AT-SPI for Linux
|TLazAccessibleObject||Qt||Mac OS X||MSAA||AT-SPI||Comments|
|Description||?||AXRoleDescription and AXDescription||?||?||-|
|Value||?||AXTitle, AXValue||Value, Name, State||?||-|