Web services are first and foremost about messages. No matter what platform you are using, what industry you are building services for, or what levels of complexity are available in your Web services stack, it all comes back to messages. When you are developing services or their corresponding clients, you are creating, transporting, and processing XML messages. Because tools try to make that process easy, sometimes you might (conveniently) forget what it's really all about. No matter how good your Web services tools are, there will inevitably be those moments when something doesn't work, and you find yourself brought back down to earth and ..
