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. © 2009 Springer Berlin Heidelberg.
CITATION STYLE
Polyvyanyy, A., & Weske, M. (2009). Hypergraph-based modeling of Ad-Hoc business processes. In Lecture Notes in Business Information Processing (Vol. 17 LNBIP, pp. 278–289). Springer Verlag. https://doi.org/10.1007/978-3-642-00328-8_27
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