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Sensors 2013, 13(8), 10954-10980; doi:10.3390/s130810954

On the Support of Scientific Workflows over Pub/Sub Brokers

Department of Telematics Engineering, Technical University of Madrid, Av. Complutense 30, Ciudad Universitaria, 28040 Madrid, Spain
Author to whom correspondence should be addressed.
Received: 9 July 2013 / Revised: 7 August 2013 / Accepted: 14 August 2013 / Published: 20 August 2013
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The execution of scientific workflows is gaining importance as more computing resources are available in the form of grid environments. The Publish/Subscribe paradigm offers well-proven solutions for sustaining distributed scenarios while maintaining the high level of task decoupling required by scientific workflows. In this paper, we propose a new model for supporting scientific workflows that improves the dissemination of control events. The proposed solution is based on the mapping of workflow tasks to the underlying Pub/Sub event layer, and the definition of interfaces and procedures for execution on brokers. In this paper we also analyze the strengths and weaknesses of current solutions that are based on existing message exchange models for scientific workflows. Finally, we explain how our model improves the information dissemination, event filtering, task decoupling and the monitoring of scientific workflows. View Full-Text
Keywords: scientific workflow; publish/subscribe; distributed execution models; brokers; logic gates; workflow patterns scientific workflow; publish/subscribe; distributed execution models; brokers; logic gates; workflow patterns

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Morales, A.; Robles, T.; Alcarria, R.; Cedeño, E. On the Support of Scientific Workflows over Pub/Sub Brokers. Sensors 2013, 13, 10954-10980.

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