At the same time, some new standards of Web Service: Simple Object Access Protocol( SOAP), Web Service Description Language( WSDL), Universal Description Discovery Integration( UDDI) have offered the complete support to use Web Service etc.
In this paper exhaustive-service priority-M/G/1 queueing systems with multiple vacations, single vacation and setup times are studied under the nonpreemptive and preemptive resume priority disciplines.
Finally, another physical meaning of the service rate is given.
An M/G/1 retrial queue with second multi-optional service, feedback and unreliable server
An M/G/1 retrial queue with two-phase service and feedback is studied in this paper, where the server is subject to starting failures and breakdowns during service.
Primary customers get in the system according to a Poisson process, and they will receive service immediately if the server is available upon arrival.