UI testing is user interface testing. That is, testing how the application and the 
user interact. This includes how the application handles keyboard and mouse 
input and how it displays screen text, images, buttons, menus, dialog boxes, 
icons, toolbars and more

verify weather application is accessable by customer easily 
called UI like colors,fonts,spell check etc

UI stands for the user interface testing.where the testers 
will test for the user interfaces like testing weather that 
screens in that bulid is easilu understanble to the user or 
not,test for the color of the font,size of the font,manual 
for the particular bulid is understandable to the normal 
users(non-IT peoples),testing for the when the cursor drag 
toward any tool bar items it shuld say the tool 
tip..........totally testing for the user understandable or 
not.

UI testing means how u are appication is user friendly for 
use as like the application use by both key board and mouse 
and easy to understand for use

When you are testing for a User interface, it should be 
convenient for the users. Not only the compatibility(with 
different monitor size), browser checks but also th 
Usability check should be done, heuristic evaluation to be 
performed.

UI tesing means testing the UI by considering parameters like
consistency, usability, visibility, acessability and
compatability.