This chapter discusses the usability of a mobile application as one of the
main qualitative attributes. The chapter focuses on the users’ expectations about
usability and the redundancy of content or appearance of the product. It discusses how
fast and easy it to learn the use of the mobile application is by memorizing what has
been learned from the application. Moreover, it emphasizes the application's
capabilities to recover the required information. It discusses how experienced mobile
users can perform common tasks very fast and the possibilities of interacting with other
applications. This chapter emphasizes protection against making mistakes and meeting
the accessibility standards, which apply to the mobile application.
Keywords: Capabilities, Easy to Learn, Experienced Mobile Users, Interaction,
Mobile Application, Qualitative Characteristics, Redundancy, Usability, Users’
Expectation.
