Usability

Usability

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Term2.png USABILITY
A quality attribute that assesses how easy user interfaces are to use. The term usability also refers to methods for improving ease-of-use during the design process. Usability is defined by six quality components [1]:


Qualities Content
Utility A key attribute of a design process is utility, which refers to the design's functionality. Usability and utility are equally important.
Learnability An easy way for users to accomplish basic tasks the first time they encounter the design (a user-friendly Website).
Efficiency Once users have learned the design, how quickly can they perform tasks, a clearly state of what a company offers and what users can do.
Memorability When users return to the design after a period of time, how easily can they reestablish proficiency.
Errors How easily users can recover from the errors.
Satisfaction How pleasant is it to use the design process.



References

  1. www.useit.com,www.motive.co.nz (23 July 2008)