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blogs:pub2002:discovering_workflow_performance_models_from_timed_logs [2009/05/25 10:52] (current)
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 +====== Discovering Workflow Performance Models from Timed Logs ======
 +W.M.P. van der Aalst and B.F. van Dongen\\
 +//In Y. Han, S. Tai, and D. Wikarski, editors, International Conference on Engineering and Deployment of Cooperative Information Systems (EDCIS 2002), volume 2480 of Lecture Notes in Computer Science, pages 45-63. Springer-Verlag,​ Berlin, 2002//\\
 +===== Abstract =====
 +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. Starting point for such techniques are
 +so-called "​workflow logs" containing information about the workflow process
 +as it is actually being executed. In this paper, we extend our existing
 +mining technique "​alpha"​ to incorporate time. We assume that events in
 +workflow logs bear timestamps. This information is used to attribute timing
 +such as queue times to the discovered workflow model. The approach
 +is based on Petri nets and timing information is attached to places. This
 +paper also presents our workflow-mining tool EMiT. This tool translates
 +the workflow log of several commercial systems (e.g., Staffware) to an independent
 +XML format. Based on this format the tool mines for causal
 +relations and produces a graphical workflow model expressed in terms of
 +Petri nets.
 +===== Links =====
 +{{publications:​Aalst2002b.pdf|Download PDF}} (314 KB)