Workflow Data Guards

Workflow Data Guards

Abstract

Workflow management systems (WfMSs) frequently use data to coordinate the execution of workflow instances. A WfMS evaluates conditions defined on data to make the control flow decisions i.e. selecting the next activity or deciding on an actor. However, data - within and outside of a running workflow instance - may change dynamically. Modifications of data needed for past control flow decisions may invalidate these decisions. We analyze the desired synchronization policies, and propose a mechanism called data guard to selectively guarantee that significant changes in data are recognized and handled by the workflow management system to ensure correctness of workflow execution in face of asynchronous updates.

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Authors
  • Eder, Johann
  • Lehmann, Marek
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  • © 2005 Springer Verlag (<a href='http://www.springer.de/comp/lncs/index.html'>WWW</a>)
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Shortfacts
Category
Paper in Conference Proceedings or in Workshop Proceedings
Event Title
On the Move to Meaningful Internet Systems 2005: CoopIS, DOA, and ODBASE
Divisions
Data Analytics and Computing
Event Location
Agia Napa, Cyprus
Event Type
Conference
Event Dates
2005-10-31
Series Name
Lecture Notes in Computer Science 3760
Publisher
Springer Verlag
Page Range
pp. 502-519
Date
October 2005
Official URL
http://www.pri.univie.ac.at/Publications/2005/Eder...
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