Addressing the Issue of Service Volatility in Scientific Workflows

Authors:
Khalid Belhajjame
Affiliations:
School of Computer Science, University of Manchester, Oxford Road, Manchester, UK
Venue:
ICSOC '07 Proceedings of the 5th international conference on Service-Oriented Computing
Year:
2007

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Abstract

Workflows are increasingly used in scientific disciplines for modelling, enacting and sharing in silicoexperiments. However, the reuse of an existing workflow is frequently hampered by the volatility of its constituent service operations. To deal with this issue, we propose in this paper a set of criteria for characterising service replaceability using which substitute operations can be automatically located for replacing unavailable ones in workflows.