The software’s user interface is the only thing that the users see, touch and feel. They are not concerned about the backend code, database, or the frameworks you used to build the software. Building an application with broken, inconsistent, or annoying user interfaces can be enough to lose customers.
The goal of the UI testing is to ensure that the software uses a consistent user experience and no visual or graphical elements on the screen are broken. An advanced form of UI testing also ensures that the user interface is intuitive, prevents common mistakes, and doesn’t get in the way of the users getting their job done.
Typically, UI testing is performed manually by a human tester. With the advancements in the tools and frameworks in automation testing, UI testing is becoming a good candidate for automation.