2010 | OriginalPaper | Buchkapitel
Schedule-Aware Workflow Management Systems
verfasst von : Ronny S. Mans, Nick C. Russell, Wil M. P. van der Aalst, Arnold J. Moleman, Piet J. M. Bakker
Erschienen in: Transactions on Petri Nets and Other Models of Concurrency IV
Verlag: Springer Berlin Heidelberg
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Contemporary workflow management systems offer work-items to users through specific work-lists. Users select the work-items they will perform without having a specific schedule in mind. However, in many environments work needs to be scheduled and performed at particular times. For example, in hospitals many work-items are linked to appointments, e.g., a doctor cannot perform surgery without reserving an operating theater and making sure that the patient is present.
One of the problems when applying workflow technology in such domains is the lack of calendar-based scheduling support
. In this paper, we present an approach that supports the seamless integration of unscheduled (flow) and scheduled (schedule) tasks. Using CPN Tools we have developed a specification and simulation model for schedule-aware workflow management systems. Based on this a system has been realized that uses YAWL, Microsoft Exchange Server 2007, Outlook, and a dedicated scheduling service. The approach is illustrated using a real-life case study at the AMC hospital in the Netherlands. In addition, we elaborate on the experiences obtained when developing and implementing a system of this scale using formal techniques.