The Web Services Pattern

Web services follow a stateless request/response model that corresponds directly with the client/server model of Hypertext Transfer Protocol (HTTP). The following summary illustrates this programming pattern:

• A client application discovers that a server application hosts a web service that exposes one or more web methods. This process, known as discovery, is accomplished in one or more of the following ways:

• Microsoft’s Universal Description, Discovery, and Integration (UDDI) service, an online catalog for publishing web services, facilitates this process.

• More commonly, the developer of the hosted web service provides the network address and web method descriptions to the developer of the client application that ...

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