It shows where usability fits in the software quality context. After describing the usability testing procedure, it gives a success story to show how usability testing contributes in the real-world. 1.1 Software quality and usability Most software companies are interested in higher quality levels of the software they develop. For quality improvements, companies focus on these four areas. Usability is the ease, speed, and pleasantness with which intended users can use a software application.
Usability is a concern in the design of any product used by humans.
It is perhaps more important to the software industry because of the intangible nature of software. If a software application is poor in usability, users are less productive, commit more errors, and are dissatisfied with the software. Software companies and end-user organizations miss the business benefits that result from highly usable applications. Users are happier doing things with a usable software. Software companies and end-user organizations derive benefits too.