quality of service
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... introduction of partial services allows applications to lower the
demanded quality of service (QOS) of the communication assuming that
such a service ...
... audio channel is usually not a problem.
Bearing this in mind, it is of value to consider a quality of service
that combines a partial order with a level of tolerated loss (partial
reliability ...
... "unreliable" service does not necessarily lose objects; rather, it
may do so without failing to provide its advertised quality of
service; e.g., the postal system provides an unreliable service).
Since there are varying degrees of unreliability, this service ...