UI controls are elements in a software interface that allow users to interact with the application. Common examples include buttons, sliders, checkboxes, and text fields. These controls help users perform actions, input data, and navigate through the application efficiently. The design and placement of UI controls are crucial for user experience. Well-designed controls should be intuitive and accessible, enabling users to complete tasks with minimal effort. Effective UI controls enhance usability and ensure that users can easily understand how to interact with the software, leading to a more satisfying experience overall.