Mouseover

Mouseover is an event that occurs on some systems when the pointer is moved over a widget or over a particular section of the display area.

Problems
The use of mouseover events may cause an operational restriction in some software, because the user may be using a keyboard or touchscreen device, rather than a conventional pointingdevice, and may not be able to access the functionality provided by a mouseover event.

Revolution Against Mouse Requisite Interfaces
The Revolution Against Mouse Requisite Interfaces is a project to make software easier to operate and automate.