TY - GEN
T1 - A QoS broker based architecture for efficient web services selection
AU - Adel Serhani, M.
AU - Dssouli, Rachida
AU - Hafid, Abdelhakim
AU - Sahraoui, Houari
PY - 2005
Y1 - 2005
N2 - Quality of Service (QoS) support in web services plays a great role for the success of this emerging technology. In this paper, we present a QoS brokerbased architecture for web services. The main goal of the architecture is to support the client in selecting web services based on his/her required QoS. To achieve this goal, we propose a two-phase verification technique that is performed by a third party broker. The first phase consists of syntactic and semantic verification of the service interface description including the QoS parameters description. The second phase consists of applying a measurement technique to compute the QoS metrics stated in the service interface and compares their values with the claimed one. This is used to verify the conformity of a web service from the QoS point of view (QoS testing). A methodological approach to generate QoS test cases, as input to QoS verification is used. We have implemented a prototype that includes the verification and certification components of the broker. We performed experiments to evaluate the importance of verification and certification features in the selection process using real web services.
AB - Quality of Service (QoS) support in web services plays a great role for the success of this emerging technology. In this paper, we present a QoS brokerbased architecture for web services. The main goal of the architecture is to support the client in selecting web services based on his/her required QoS. To achieve this goal, we propose a two-phase verification technique that is performed by a third party broker. The first phase consists of syntactic and semantic verification of the service interface description including the QoS parameters description. The second phase consists of applying a measurement technique to compute the QoS metrics stated in the service interface and compares their values with the claimed one. This is used to verify the conformity of a web service from the QoS point of view (QoS testing). A methodological approach to generate QoS test cases, as input to QoS verification is used. We have implemented a prototype that includes the verification and certification components of the broker. We performed experiments to evaluate the importance of verification and certification features in the selection process using real web services.
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U2 - 10.1109/ICWS.2005.13
DO - 10.1109/ICWS.2005.13
M3 - Conference contribution
AN - SCOPUS:33749078957
SN - 0769524095
SN - 9780769524092
T3 - Proceedings - 2005 IEEE International Conference on Web Services, ICWS 2005
SP - 113
EP - 120
BT - Proceedings - 2005 IEEE International Conference on Web Services, ICWS 2005
T2 - 2005 IEEE International Conference on Web Services, ICWS 2005
Y2 - 11 July 2005 through 15 July 2005
ER -