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The user interface is an element designed in the information gadget a person may observe and interact with. User interface is evaluated for usability – the quality that relates to the efficiency, effectiveness and satisfaction with which a human being can perform the tasks using the interface’s elements. It plays a crucial role in building customer satisfaction. This is a visual part of software program or operating system  that needs to be tested for presence of certain features like Windows, Menus, Icons or Pointing devices.

User interface testing services are available to find defects in software products under test by means of GUI (graphical user interface).

In early stages of software development process it is possible to employ user interface prototype. It is a convenient tool which allows the testers to get the user interface of the manufactured programs to go through exhaustive testing.

User-interface prototyping is an iterative verification technique that has the following benefits:

• Development team and testing team get opportunity to inspect and optimize the interface of a software product before it has been built.
• Software developers, testers and users can work together so that to improve application user interface prior to its creation. By the way, this can be done without prototyping user interface of a software app, but, then, it will be impossible to know how the interface looks like before its design is ready.

You will find usability testing services helpful when it is necessary to check how easy to use your application. You just see real users trying out your products. The men and women perform the tasks meant to measure the usability. User application interface and also other human factors of the program are reviewed by the people who are going to work with this application.  

• In the late development life cycle stages, it makes sense to involve representatives of the end users and professionals in the domain in creation of test cases for usability testing.

Since during this phase of the product development, fundamental changes are hardly possible to undertake, the end users and the domain professionals should give their feedback on the interface design, pointing out its pluses and minuses, and telling what would they modify in the product , i.e. make only insignificant changes.

Resorting to app testing service you will be able to thoroughly examine your program in order to identify, eliminate or prevent many costly problems in it.