Because Java developers need tools to help incorporate XML data into their applications. Sun has created the "JAX Pack" - a collection of programming interfaces to ease XML development. The JAX APIs are fundamental for development of Web Service applications as well as other e-Commerce applications requiring the exchange and manipulation of data. JAX: Java APIs for XML covers the full JAX Pack. For many readers who want to use JAX to create Web Services, the first chapter includes an overview of Web Service fundamentals including SOAP, UDDI and WSDL, all of which will be built upon in later examples. The book covers the JAX APIs for data processing and binding, for messaging, for writing data to registries and for calling remote applications. Each API is covered from an architectural and implementation perspective, using real-world examples and case studies throughout to illustrate their usefulness. The authors demonstrate both Web Service and traditional JAX applications, giving developers a complete picture of the uses of the JAX Pack. The final chapter looks ahead to new developments and new APIs in progress at Sun.