1.4. The New Platform

The Web services platform needs a minimum set of features to enable building distributed applications. Any platform must have a data representation format and a type system. To enable interoperability, the Web services platform must provide a standard type system that bridges today's differences among type systems of different platforms, programming languages, and component models.

Traditionally, interface-based platforms for distributed systems have provided some means of formally describing interfaces, methods, and parameters. Similarly, the Web services platform must provide a means for describing a Web service and for providing the information others need to invoke this Web service.

Finally, there must be a mechanism ...

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