It can be defined as, how easy interface's are used.
it is made up of 5 components.
- Learn ability: How easy is it for users to accomplish basic tasks the first time they encounter the design?
- Efficiency: Once users have learned the design, how quickly can they perform tasks?
- Memorability: When users return to the design after a period of not using it, how easily can they reestablish proficiency?
- Errors: How many errors do users make, how severe are these errors, and how easily can they recover from the errors?
- Satisfaction: How pleasant is it to use the design?
How can usability testing help your website?
If people find your website difficult to use, then they will leave. If the user doesn't know what the website is about on the homepage they will leave. But if your website has great level of usability the user will stay and thus spread the word. Your website needs a great deal of information to attract the user, not just a boring plain old website.
source:
Website Design Melbourne
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