| http://www.w3.org/ns/prov#value | - QuO contracts define varying levels of QoS, called ???regions.??? Some of these regions document the QoS required by the client, such as a requirement for a specified number of replicated objects, and are called ???negotiated regions.??? Other regions document the QoS actually delivered at a particular time and are called ???reality regions.??? When the client's required QoS falls within the QoS p
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