Usability testing is the process of evaluating how easy a system is to learn and use.

In practical terms, usability testing ensures that software is user-friendly in regards to ergonomic considerations, screen design, and standardization. Usability evaluations should be conducted early in the software development life-cycle to minimize the impact of changes to the user interface. 

Benefits

• Better quality software
• Software is easier to use
• Software is more readily accepted by users
• Shortens the learning curve for new users