Hi suaveant,

You might want to read some articles from IBM developerWorks. In particular, you might be interested in:

• Ask the magic eight ball: “In this article, Doug Tidwell takes a simple piece of code, deploys it as a Web service, and writes a few clients for it. Next, he discusses how to create a description of the Web service and how to store that description in a registry and on a Web server.”
• Deploying Web services with WSDL: Part 1: “In the Deploying Web services with WSDL series, Bilal will explore all major technical aspects of creating, deploying, and publishing Web services -- from Web Services Markup Language (WSDL), to Simple Object access Protocol (SOAP), and Universal Description Discovery and Integration (UDDI) registries. Part 1 focuses on WSDL authoring”
• Deploying Web services with WSDL, Part 2: Simple Object Access Protocol (SOAP): “Learn SOAP syntax and deploy WSDL applications using SOAP”
• Developing Web services, Part 3: SOAP interoperability
• Web services insider, Part 1: Reflections on SOAP

I hope this helps

Cheers,