At the JavaOne Conference, Harold Carr, Lead Architect and Arun Gupta, Evangelist at Sun, gave a presentation showing integration between .NET 3.0 and Sun Glassfish applications using Web Services Interoperability Technology, code named Tango.
In the presentation, Carr and Gupta gave a demonstration of how it was possible to use a Microsoft Excel application as a client to post data to a back end server with which a legacy client running on Unix could interact.
Carr said that before the implementation of WSIT, these kinds of features were somewhat limited. The basic Java APIs for XML Web Services (JAX-WS) is specific to HTTP. Glassfish introduces Meta-Data Exchange (MEX), which enables Java and Windows server applications to communicate via multiple channels, such as InfiniBand within the data center.
The WSIT capabilities introduce support for a variety of Web service protocols for improving the integration of applications across the Windows and Java server platforms. WSIT actually consists of a number of Web specifications including WS-Reliable Messaging, WS-Secure, and WS-Trust.