What is the function of UI?

UI state is defined as a mostly consistent user interface shown in the window level, reflecting a specific piece of program functionality . An example of a UI state is a login window, in which the text content may change but the overall layout and functionality remain the same.

The user interface (UI) is the point at which human users interact with a computer, website or application. The goal of effective UI is to make the user’s experience easy and intuitive, requiring minimum effort on the user’s part to receive maximum desired outcome .

A user interface (UI) is one of the most significant parts of an information system (IS). A user-friendly UI helps users to carry out their tasks with efficiency, effectiveness, and satisfaction. UI consists of five elements: metaphor, mental model, navigation, interaction, and appearance.

“User Interface Development” is the development of websites, web applications, mobile applications and software development. “User Interface” plays a key role in the “software development life cycle”.