One-way binding is a data binding technique commonly used in programming and web development. In this approach, data flows in one direction, typically from a data source, such as a database or API, to a user interface element, like a text box or label. This means that when the data changes, the UI updates automatically, but any changes made in the UI do not affect the original data source. This method is beneficial for displaying information without the need for constant updates from the user interface. It simplifies the development process by reducing complexity, making it easier to manage data flow and maintain the application.