Thirdly, savings come from reduced support costs. If the product is usable, little or no training is required for the buyers. There will also be significant savings of help-desk calls. Finally, the resulting competitive advantage can be a big benefit. Usability engineering is a set of processes, techniques, skills, principles, and tools to achieve high levels of software usability.
Usability engineering fits into popular flavors of the software engineering process.
One essential step in usability engineering is to evaluate the software for usability. For this, many methods can be used. Usability inspection, usability testing, and field research are examples of evaluation methods. Usability testing is a very common method. TOP 1.4 Usability testing The ultimate purpose of any usability evaluation method is to identify problems that users will have with the user interface, so that those problems can be addressed.