Reduction rules for YAWL workflows with cancellation regions and OR-joins
Wynn, Moe, Verbeek, Eric, van der Aalst, Wil, ter Hofstede, Arthur, & Edmond, David (2009) Reduction rules for YAWL workflows with cancellation regions and OR-joins. Information and Software Technology, 51(6), pp. 1010-1020.
As the need for concepts such as cancellation and OR-joins occurs naturally in business scenarios, comprehensive support in a workflow language is desirable. However, there is a clear trade-off between the expressive power of a language (i.e., introducing complex constructs such as cancellation and OR-joins) and ease of verification. When a workflow contains a large number of tasks and involves complex control flow dependencies, verification can take too much time or it may even be impossible. There are a number of different approaches to deal with this complexity. Reducing the size of the workflow, while preserving its essential properties with respect to a particular analysis problem, is one such approach. In this paper, we present a set of reduction rules for workflows with cancellation regions and OR-joins and demonstrate how they can be used to improve the efficiency of verification. Our results are presented in the context of the YAWL workflow language.
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|Item Type:||Journal Article|
|Keywords:||Verification of Process Models, Soundness Property, Reduction Rules, Cancellation, Or-Join, Reset Nets|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > COMPUTER SOFTWARE (080300)|
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > INFORMATION SYSTEMS (080600)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > INFORMATION SYSTEMS (080600) > Information Systems not elsewhere classified (080699)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
Past > Schools > School of Information Systems
|Deposited On:||13 Jul 2011 23:06|
|Last Modified:||03 Dec 2012 12:08|
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