The Community for Technology Leaders
2010 6th World Congress on Services (2010)
Miami, Florida
July 5, 2010 to July 10, 2010
ISBN: 978-0-7695-4129-7
pp: 344-351
ABSTRACT
Despite recent advances in many real-time and workflow management systems (WFMS), event-handling is still a manual or semi-automated task. The integration of automated event processing with workflows remains an open research challenge to both academic and industrial communities. In this work, we propose a concrete approach that logs interactions between workflow component activities in the form of data states that accurately and efficiently store necessary information for event-handling. Our approach (called WED-flow) explicitly represents various dependencies and constraints of a WFMS in sophisticated data states. Due to the availability of this large amount of historic information, our approach is able to support a flexible event-handling in WFMS. In this paper we present definitions for workflow management systems that incorporate events, and characterize such systems using the WED-flow approach. We also present a scientific workflow example in genetic testing to illustrate the advantages of integrating events with workflow through the WED-flow approach.
INDEX TERMS
data-flow, data state, control-flow, event-handling, transaction model, scientific workflow
CITATION

Q. Wu, C. Pu, J. E. Ferreira and S. Malkowski, "Towards Flexible Event-Handling in Workflows through Data States," 2010 6th World Congress on Services(SERVICES), Miami, Florida, 2010, pp. 344-351.
doi:10.1109/SERVICES.2010.60
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