Usability Testing

DEFINITION: Also see human-computer interaction and graphical user interface.Usability is the measure of a product's potential to accomplish the goals of the user. In information technology, the term is often used in relation to software applications and Web sites, but it can be used in relation to any product that is employed to accomplish a task (for example, a toaster, a car dashboard, or an alarm clock).  … 
Definition continues below.

USABILITY TESTING DEFINITION (continued): …  Some factors used in determining product usability are ease-of-use, visual consistency, and a clear, defined process for evolution. Usability testing is a method by which users of a product are asked to perform certain tasks in an effort to measure the product's ease-of-use, task time, and the user's perception of the experience. Usability testing can be done formally, in a usability lab with video cameras, or informally, with paper mock-ups of an application or Web site. Changes are made to the application or site based on the findings of the usability tests. Whether the test is formal or informal, … 
Usability Testing definition sponsored by SearchSOA.com, powered by WhatIs.com an online computer dictionary