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Specifying Complex Process Control Aspects in Workflows for Exception Handling
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A.H.M ter Hofstede and
A.P. Barros
View Paper (PDF)
Return to Session 1B: Workflow Management and Specification Language
Contemporary specification
languages of workflow management systems focus on capturing process execution
semantics. Constructs are offered that allow the specification of sequential
execution, iteration, choice, parallelism and synchronisation. While in
workflow modelling it is absolutely imperative that exceptions are dealt with
properly, virtually no support for the specification of exception handling is
offered at the conceptual level. Typically, exceptions and recovery strategies
need to be defined using the programming primitives of the specific workflow
management systems used. In this paper we propose a number of conceptual
modelling primitives that can be used for the specification of exception
handling in workflows. These primitives are illustrated using some real-life
examples. A formal semantics is assigned to precisely define their meaning and
demonstrating how they can be incorporated in a typical process modelling language.
Copyright(C) 2000 ACM
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