Explain different Web Services communication Models

RPC-Based Communication Model

The RPC-based communication model defines a request/response-based synchronous communication. When the client sends a request, the client waits until a response is sent back from the server before continuing any operation. Typical to implementing CORBA or RMI communication, the RPC-based Web services are tightly coupled and are implemented with remote objects to the client application.


Messaging-Based Communication Model

The messaging-based communication model defines a loosely coupled and document-driven communication. The service requestor invoking a messaging-based service provider does not wait for a response.


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