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Modeling and Analysis of Workflows Using Petri Nets
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Relational transducers for electronic commerce
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SOCA '07 Proceedings of the IEEE International Conference on Service-Oriented Computing and Applications
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ACM SIGMOD Record
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The VLDB Journal — The International Journal on Very Large Data Bases
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ICSOC '07 Proceedings of the 5th international conference on Service-Oriented Computing
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MFCS '08 Proceedings of the 33rd international symposium on Mathematical Foundations of Computer Science
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OTM '08 Proceedings of the OTM 2008 Confederated International Conferences, CoopIS, DOA, GADA, IS, and ODBASE 2008. Part II on On the Move to Meaningful Internet Systems
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Proceedings of the 12th International Conference on Database Theory
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TIME '09 Proceedings of the 2009 16th International Symposium on Temporal Representation and Reasoning
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BPM'07 Proceedings of the 5th international conference on Business process management
Comparing workflow specification languages: a matter of views
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Proceedings of the 32nd symposium on Principles of database systems
Foundations of data-aware process analysis: a database theory perspective
Proceedings of the 32nd symposium on Principles of database systems
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We address the problem of comparing the expressiveness of workflow specification formalisms using a notion of view of a workflow. Views allow to compare widely different workflow systems by mapping them to a common representation capturing the observables relevant to the comparison. Using this framework, we compare the expressiveness of several workflow specification mechanisms, including automata, temporal constraints, and pre-and postconditions, with XML and relational databases as underlying data models. One surprising result shows the considerable power of static constraints to simulate apparently much richer workflow control mechanisms.