Hypergraph-Based Modeling of Ad-Hoc Business Processes
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2009-01-01
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Lecture Notes in Business Information Processing
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SPRINGER-VERLAG BERLIN
Melbourne Authors
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Computing and Information Systems
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Conference Paper
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Polyvyanyy, A. & Weske, M. (2009). Hypergraph-Based Modeling of Ad-Hoc Business Processes. Ardagna, D (Ed.) Mecella, M (Ed.) Yang, J (Ed.) BPM 2008 international workshops, 17, pp.278-289. SPRINGER-VERLAG BERLIN. https://doi.org/10.1007/978-3-642-00328-8_27.
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Abstract
Process models are usually depicted as directed graphs, with nodes representing activities and directed edges control flow. While structured processes with pre-defined control flow have been studied in detail, flexible processes including ad-hoc activities need further investigation. This paper presents flexible process graph, a novel approach to model processes in the context of dynamic environment and adaptive process participants’ behavior. The approach allows defining execution constraints, which are more restrictive than traditional ad-hoc processes and less restrictive than traditional control flow, thereby balancing structured control flow with unstructured ad-hoc activities. Flexible process graph focuses on what can be done to perform a process. Process participants’ routing decisions are based on the current process state. As a formal grounding, the approach uses hypergraphs, where each edge can associate any number of nodes. Hypergraphs are used to define execution semantics of processes formally. We provide a process scenario to motivate and illustrate the approach.