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2009
Springer

Revisiting the Behavior of Fault and Compensation Handlers in WS-BPEL

9 years 1 months ago
Revisiting the Behavior of Fault and Compensation Handlers in WS-BPEL
When automating work, it is often desirable to compensate completed work by undoing the work done by one or more activities. In the context of workflow, where compensation actions are defined on nested ’scopes’ that group activities, this requires a model of nested compensation–based transactions. The model must enable the automatic determination of compensation order by considering not only the nesting of scopes but also the control dependencies between them. The current standard for Web services workflows, Business Process Execution Language for Web Services (WS-BPEL), has such compensation capabilities. In this paper, we show that the current mechanism in WS-BPEL shows compensation processing anomalies, such as neglecting control link dependencies between nested non-isolated scopes. We then propose an alternate approach that through elimination of default handlers as well as the complete elimination of termination handlers not only removes those anomalies but also relaxes c...
Rania Khalaf, Dieter Roller, Frank Leymann
Added 27 May 2010
Updated 27 May 2010
Type Conference
Year 2009
Where OTM
Authors Rania Khalaf, Dieter Roller, Frank Leymann
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