The document describes how to create a simple web service in Java that returns a greeting message, and then how to test and consume the web service using a client. Key steps include: 1. Creating a Java class with the @WebService annotation to expose a "sayHello" method. 2. Deploying and testing the web service by invoking the "sayHello" method and viewing the request/response messages. 3. Generating a WSDL file from the web service. 4. Creating a client project and using the WSDL to generate a client to invoke the "sayHello" method.