JavaServer Faces (JSF) is a rapidly growing Java-based web application framework that helps developers create user interfaces for web applications. It simplifies the development process by providing an API that enables developers to quickly create complex user interfaces with a minimal amount of code. JSF components are reusable, so developers can quickly assemble applications without having to write code for each component. This helps to reduce development time and cost, making JSF an attractive choice for web application developers. JSF also provides a powerful event-driven architecture, allowing developers to easily respond to user interactions with the application. With its rapid development time, easy-to-use components, and event-driven architecture, JSF is an excellent choice for developers looking to create powerful, user-friendly web applications.