Efficient Distributed Workflow Management Based on Variable Server Assignments

Bauer, Thomas and Dadam, Peter (1999) Efficient Distributed Workflow Management Based on Variable Server Assignments. Technical Report. Universität Ulm.

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For enterprise-wide and cross-enterprise workflow (WF)
applications, the load of the WF servers and the amount of communication in the subnets may become a bottleneck. This paper shows how a distributed WF control can be realized in a way that the load of the components at run time is
minimized. For that purpose, the control of a WF instance may migrate from one WF server to another. The WF servers are assigned to the WF activities in a way that minimizes the communication load. The server assignments are
determined at build time by analyzing the WF model with respect to the actor assignments. As these actor assignments may depend on preceding activities, static server assignments are not always reasonable. Hence, so-called variable server assignment expressions are introduced, which allow dynamic server assignment without expensive run time analyses.

Item Type: Monograph (Technical Report)
Subjects: DBIS Research > Publications
Divisions: Faculty of Engineering, Electronics and Computer Science > Institute of Databases and Informations Systems > DBIS Research and Teaching > DBIS Research > Publications
Depositing User: Eva Mader
Date Deposited: 14 May 2008 11:51
Last Modified: 14 Oct 2011 10:25
URI: http://dbis.eprints.uni-ulm.de/id/eprint/359

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