TY - GEN
T1 - Multi-objective service composition with time- and input-dependent QoS
AU - Wagner, Florian
AU - Klein, Adrian
AU - Klöpper, Benjamin
AU - Ishikawa, Fuyuki
AU - Honiden, Shinichi
PY - 2012/9/24
Y1 - 2012/9/24
N2 - Optimizing the Quality-of-Service (QoS) levels of a service workflow is essential for the user satisfaction in Service-oriented Computing. For that purpose, QoS computation models are applied to reflect the actual QoS experienced by the user during service execution. Current QoS models ignore the possible dependencies of QoS attributes, such as the dependency on the time of the execution or on the input data supplied to the service. Apart from that, composition approaches consider only single workflows during service selection, narrowing the number of possible compositions. Thus, we introduce a novel QoS model that covers QoS dependencies and discuss how this model can be used to consider multiple workflows at the same time. Moreover, we adopt a multi-objective optimization approach to offer solutions varying in QoS such as finishing time and price, allowing the user to make fine-grained decisions.
AB - Optimizing the Quality-of-Service (QoS) levels of a service workflow is essential for the user satisfaction in Service-oriented Computing. For that purpose, QoS computation models are applied to reflect the actual QoS experienced by the user during service execution. Current QoS models ignore the possible dependencies of QoS attributes, such as the dependency on the time of the execution or on the input data supplied to the service. Apart from that, composition approaches consider only single workflows during service selection, narrowing the number of possible compositions. Thus, we introduce a novel QoS model that covers QoS dependencies and discuss how this model can be used to consider multiple workflows at the same time. Moreover, we adopt a multi-objective optimization approach to offer solutions varying in QoS such as finishing time and price, allowing the user to make fine-grained decisions.
KW - QoS dependencies
KW - QoS-aware Service composition
KW - multi-objective optimization
UR - http://www.scopus.com/inward/record.url?scp=84866419025&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866419025&partnerID=8YFLogxK
U2 - 10.1109/ICWS.2012.40
DO - 10.1109/ICWS.2012.40
M3 - Conference contribution
AN - SCOPUS:84866419025
SN - 9780769547527
T3 - Proceedings - 2012 IEEE 19th International Conference on Web Services, ICWS 2012
SP - 234
EP - 241
BT - Proceedings - 2012 IEEE 19th International Conference on Web Services, ICWS 2012
T2 - 2012 IEEE 19th International Conference on Web Services, ICWS 2012
Y2 - 24 June 2012 through 29 June 2012
ER -