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Using simulation to facilitate effective workflow adaptation

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3 Author(s)
Miller, J.A. ; Dept. of Comput. Sci., Georgia Univ., Athens, GA, USA ; Cardoso, Jorge ; Silver, G.

In order to support realistic real-world processes, workflow systems need to be able to adapt to changes. Detecting the need to change and deciding what changes to carry out are very difficult. Simulation analysis can play an important role in this. It can be used in tuning quality of service metrics and exploring "what-if" questions. Before a change is actually made, its possible effects can be explored with simulation. To facilitate rapid feedback, the workflow system (METEOR) and simulation system (JSIM) need to interoperate. In particular, workflow specification documents need to be translated into simulation model specification documents so that the new model can be executed/animated on-the-fly. Fortunately, modern Web technology (e.g., XML, DTD, XSLT) make this relatively straightforward. The utility of using simulation in adapting a workflow is illustrated with an example from a genome workflow.

Published in:

Simulation Symposium, 2002. Proceedings. 35th Annual

Date of Conference:

14-18 April 2002