Workflow mining: discovering process models from event logs

Contemporary workflow management systems are driven by explicit process models, i.e., a completely specified workflow design is required in order to enact a given workflow process. Creating a workflow design is a complicated time-consuming process and, typically, there are discrepancies between the...

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Vydané v:IEEE transactions on knowledge and data engineering Ročník 16; číslo 9; s. 1128 - 1142
Hlavní autori: van der Aalst, W., Weijters, T., Maruster, L.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York IEEE 01.09.2004
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
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ISSN:1041-4347, 1558-2191
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Shrnutí:Contemporary workflow management systems are driven by explicit process models, i.e., a completely specified workflow design is required in order to enact a given workflow process. Creating a workflow design is a complicated time-consuming process and, typically, there are discrepancies between the actual workflow processes and the processes as perceived by the management. Therefore, we have developed techniques for discovering workflow models. The starting point for such techniques is a so-called "workflow log" containing information about the workflow process as it is actually being executed. We present a new algorithm to extract a process model from such a log and represent it in terms of a Petri net. However, we also demonstrate that it is not possible to discover arbitrary workflow processes. We explore a class of workflow processes that can be discovered. We show that the /spl alpha/-algorithm can successfully mine any workflow represented by a so-called SWF-net.
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ISSN:1041-4347
1558-2191
DOI:10.1109/TKDE.2004.47