Usability can return significant benefits on investment, such as:

• Improved productivity. According to Landauer (1995) the average software program has 40 design flaws that impair employees' ability to use it. The cost in lost productivity is up to 720%.

• Reduced 'User Distraction'. If the interface is well designed then this will allow the users to concentrate on the task at hand rather than the tool. This enables users to operate effectively and efficiently, rather than lose vital time struggling with a poorly designed user interface riddled with functionality problems.

• Reduced errors. If the interface is consistent, unambiguous and caters to user expectations in terms of the sequence and structure of tasks, then the user error rate will fall dramatically. This will help increase the productivity of users. 

• Reduced training. If the interface is well designed this can help encourage learning, thereby reducing training time and effort. According to Karat, "organizations that ensure their employees are provided with easy-to-use products, see dramatic reductions in training time and, subsequently, great reductions in training costs."

• Reduced 'User Resistance'. Most users would rather use and would be more likely to trust a well-designed interface, which provides information that is easy to find, easy to understand and easy to use.

• Increased staff retention. Products with a higher rate of employee satisfaction along with improved performance produce a chain reaction that leads directly, and ultimately, to more satisfied customers. And satisfied customers provide the base for business growth and competitive success. "The customer experience is the next competitive battleground." (Jerry Gregoire, CIO Dell).