WebSphere Studio Application Developer is the new IBM tool for Java development for client and server applications. It provides a Java integrated development environment (IDE) that is designed to provide rapid development for J2EE-based applications. It is well integrated with WebSphere Application Server Version 4 and provides a built-in single server that can be used for testing of J2EE applications.

Web Services are a new breed of Web applications. Web Services are self-contained, self-describing, modular applications that can be published, located, and invoked across the Web. Web Services perform callable functions that can be anything from a simple request to complicated business processes. Once a Web Service is deployed and registered, other applications can discover and invoke the deployed service. The foundation for Web Services are the simple object access protocol (SOAP), the Web Services description language (WSDL), and the Universal Description, Discovery, and Integration (UDDI) registry.

This redbook consists of two parts: a presentation guide and an exercise guide. The presentation guide explains the new tool and Web Services. The exercise guide provides detailed instructions to perform exercises using WebSphere Studio Application Developer. The sample code used for the exercises is available for download at the Redbooks Internet site. The sample code also includes the solutions that can be loaded and studied.