TY - GEN
T1 - Automatic QoS adaptation for composite web services
AU - Qiao, Ming
AU - Khendek, Ferhat
AU - Serhani, Adel
AU - Dssouli, Rachida
AU - Glitho, Roch
PY - 2008
Y1 - 2008
N2 - Quality of Services (QoS) management has become an important issue for Web services. Indeed, QoS is becoming a crucial and a distinguishing criterion among functionally equivalent Web services. QoS management consists of two complementary tasks: monitoring and adaptation. Both are very challenging because of the unpredictable and dynamic nature of Web service composition. In this paper, we propose a broker based architecture that enables dynamic QoS monitoring and adaptation for composite Web services. Our approach consists of dynamically changing the execution paths of composed Web services by instrumenting the BPEL process. We developed a prototype to evaluate the QoS adaptation scheme using our architecture and the result showed that the QoS of the BPEL process has been considerably adapted and improved comparing to the original one.
AB - Quality of Services (QoS) management has become an important issue for Web services. Indeed, QoS is becoming a crucial and a distinguishing criterion among functionally equivalent Web services. QoS management consists of two complementary tasks: monitoring and adaptation. Both are very challenging because of the unpredictable and dynamic nature of Web service composition. In this paper, we propose a broker based architecture that enables dynamic QoS monitoring and adaptation for composite Web services. Our approach consists of dynamically changing the execution paths of composed Web services by instrumenting the BPEL process. We developed a prototype to evaluate the QoS adaptation scheme using our architecture and the result showed that the QoS of the BPEL process has been considerably adapted and improved comparing to the original one.
UR - http://www.scopus.com/inward/record.url?scp=67649482678&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649482678&partnerID=8YFLogxK
U2 - 10.1109/INNOVATIONS.2008.4781692
DO - 10.1109/INNOVATIONS.2008.4781692
M3 - Conference contribution
AN - SCOPUS:67649482678
SN - 9781424433971
T3 - 2008 International Conference on Innovations in Information Technology, IIT 2008
SP - 180
EP - 184
BT - 2008 International Conference on Innovations in Information Technology, IIT 2008
T2 - 2008 International Conference on Innovations in Information Technology, IIT 2008
Y2 - 16 December 2008 through 18 December 2008
ER -