NOTE: These slides have not been updated since 2003. They have been superseded by the book An Introduction to XML and Web Technologies Addison-Wesley, and the accompanying online material. Please see http://www.brics.dk/ixwt/ for more information. Anders Møller and Michael Schwartzbach, February 2006

INTERACTIVE WEB SERVICES WITH JAVA

WSDL, SOAP, UDDI, ...

SOAP

• a framework for exchanging XML-based information in a network
• SOAP used to be an acronym: Simple Object Access Protocol
• "This is no longer the case." (it is neither simple nor has anything to do with objects)
• the currently most hyped XML/Web service technology
• mostly just hot air...

WSDL (Web Service Description Language)

• an XML-based language for describing network services
• WSDL descriptions of capabilities and locations of services
• like an interface description language for Web services
• communication using SOAP or direct HTTP

UDDI (Universal Description, Discovery, and Integration)

• provides a registry mechanism for clients and servers to find each other
• uses SOAP for communication

COPYRIGHT © 2002-2003 ANDERS MØLLER & MICHAEL I. SCHWARTZBACH