IBM RAD (Rational Application Developer) is an integrated development environment (IDE) designed for the development of enterprise applications. It is a specialized skill that involves building and deploying Java-based web applications, leveraging various technologies and frameworks such as Java EE, Spring, Struts, and Hibernate. RAD also provides seamless integration with IBM WebSphere and other IBM middleware offerings. With IBM RAD, developers can increase productivity and improve software quality by automating tedious manual tasks, such as creating and managing deployment artifacts, and testing code changes.