TY - GEN
T1 - A dynamic approach toward QoS-Aware service workflow composition
AU - Chiu, David
AU - Deshpande, Sagar
AU - Agrawal, Gagan
AU - Li, Rongxing
PY - 2009
Y1 - 2009
N2 - Web service-based workflow management systems have garnered considerable attention for automating and scheduling dependent operations. Such systems often support user preferences, e.g., time of completion, but with the rebirth of distributed computing via the grid/cloud, new challenges are abound: multiple disparate data sources, networks, nodes, and the potential for moving very large datasets. In this paper, we present a framework for integrating QoS support in a service workflow composition system. The relationship between workflow execution time and accuracy is exploited through an automatic workflow composition scheme. The algorithm, equipped with a framework for defining cost models on service completion times and error propagation, composes service workflows which can adapt to user's QoS preferences.
AB - Web service-based workflow management systems have garnered considerable attention for automating and scheduling dependent operations. Such systems often support user preferences, e.g., time of completion, but with the rebirth of distributed computing via the grid/cloud, new challenges are abound: multiple disparate data sources, networks, nodes, and the potential for moving very large datasets. In this paper, we present a framework for integrating QoS support in a service workflow composition system. The relationship between workflow execution time and accuracy is exploited through an automatic workflow composition scheme. The algorithm, equipped with a framework for defining cost models on service completion times and error propagation, composes service workflows which can adapt to user's QoS preferences.
UR - http://www.scopus.com/inward/record.url?scp=70449495438&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70449495438&partnerID=8YFLogxK
U2 - 10.1109/ICWS.2009.36
DO - 10.1109/ICWS.2009.36
M3 - Conference contribution
AN - SCOPUS:70449495438
SN - 9780769537092
T3 - 2009 IEEE International Conference on Web Services, ICWS 2009
SP - 655
EP - 662
BT - 2009 IEEE International Conference on Web Services, ICWS 2009
T2 - 2009 IEEE International Conference on Web Services, ICWS 2009
Y2 - 6 July 2009 through 10 July 2009
ER -