Usability is a measure of the interactive user experience associated with a system such as a business system, website, or mobile application and is a focus of fields of the Human Factors Psychology and Human-Computer Interaction (HCI) fields of study. Usability is the quality of a system that makes it useful in achieving a user’s goals, effective and easy to use, quick to learn, and like-able, i.e., subjectively pleasing to the user.
Usability can be measured within usability testing sessions where invited users are given a series of tasks to complete. They aren’t given any assistance from the facilitators of the testing session. As the users attempt to complete their tasks the facilitators document the behavior of the users including emotional reactions, points of confusion, user performance and efficiency, etc. An analysis of the resulting test data can be used to make design changes and perfect the usability of the application.
posted @ Saturday, March 10, 2012 10:17 PM by Chris Adams