TY - GEN
T1 - A queuing model for service selection of multi-classes QoS-aware Web services
AU - Badidi, Elarbi
AU - Esmahi, Larbi
AU - Serhani, M. Adel
PY - 2005
Y1 - 2005
N2 - The initial specifications of Web Services cope with the issues of service publishing and service discovery but not with the issue of service selection. Service discovery, handled by UDDI and WSDL, alone is not sufficient to find the most appropriate server that can deliver customers' required quality of service (QoS), In this paper, we consider a broker-based approach to provide QoS support in Web Services and deal with the selection issue. The broker may implement various selection policies that can range from static policies to dynamic ones, which take into account the current state of servers. Besides, Servers may deliver different levels of service to their customers. We model this QoS broker-based scheme by a multi-class queuing model and we study its performance with a probabilistic splitting policy for server selection.
AB - The initial specifications of Web Services cope with the issues of service publishing and service discovery but not with the issue of service selection. Service discovery, handled by UDDI and WSDL, alone is not sufficient to find the most appropriate server that can deliver customers' required quality of service (QoS), In this paper, we consider a broker-based approach to provide QoS support in Web Services and deal with the selection issue. The broker may implement various selection policies that can range from static policies to dynamic ones, which take into account the current state of servers. Besides, Servers may deliver different levels of service to their customers. We model this QoS broker-based scheme by a multi-class queuing model and we study its performance with a probabilistic splitting policy for server selection.
UR - http://www.scopus.com/inward/record.url?scp=33847228044&partnerID=8YFLogxK
U2 - 10.1109/ECOWS.2005.3
DO - 10.1109/ECOWS.2005.3
M3 - Published Conference contribution
AN - SCOPUS:33847228044
SN - 0769524842
SN - 9780769524849
T3 - Proceedings - Third European Conference on Web Services, ECOWS2005
SP - 204
EP - 212
BT - Proceedings - Third European Conference on Web Services, ECOWS2005
T2 - 3rd European Conference on Web Services, ECOWS2005
Y2 - 14 November 2005 through 16 November 2005
ER -