Understanding quality of service for Web services - 0 views
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QoS covers a whole range of techniques that match the needs of service requestors with those of the service provider's based on the network resources available. By QoS, we refer to non-functional properties of Web services such as performance, reliability, availability, and security.
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separate QoS language for Web services
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The following steps should be performed during binding establishment using a QoS-enabled Web services platform: The service requestor requests the establishment of the binding by specifying the reference to a Web service interface. This request also contains the required QoS. The QoS broker searches for the service providers in the UDDI. The QoS broker performs QoS negotiation as described below. The Web service QoS broker compares the offered QoS with the required QoS and uses its internal information to determine an agreed QoS. This process is called QoS negotiation. If the QoS negotiation has been successful, the service requestor and service provider are informed that a negotiation has been successful and a binding has been built. From this moment on these objects can interact through the binding.
