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Automating performance analysis from taverna workflows

Tolosana-Calasanz, Rafael, Rana, Omer Farood and Bañares, José A, 2008. Automating performance analysis from taverna workflows. Presented at: CBSE 2008, Karlsruhe, Germany, 14-17 October 2008. Published in: Chaudron, Michel R. V., Szyperski, Clemens and Reussner, Ralf eds. Component-based software engineering : 11th international symposium, CBSE 2008, Karlsruhe, Germany, October 14-17, 2008, proceedings. Lecture Notes in Computer Science , vol. 5282. Berlin: Springer, pp. 1-15. 10.1007/978-3-540-87891-9_1

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Workflow systems provide support for combining components to achieve a particular outcome. Various approaches from software engineering have been utilized within such systems, such as the use of design patterns to support composition, and the use of a software engineering lifecycle to support workflow construction and execution. As components used within a workflow may be implemented by third parties, it is often necessary to be able to determine the impact a particular component composition will have on the overall execution of a workflow. A method for predicting the execution time of a given workflow is proposed. First, the method obtains a model from a given workflow in an automated way. The model obtained is a Reference net – a specific type of Petri net. Features of Reference nets can subsequently be exploited, such as the possibility of building hierarchical workflow models which can facilitate the modelling process. The Reference nets are extended so that each task in the model is parameterised with a time value, representing the execution time of the task. We propose several timing profiles: those obtained from real measurement of the workflow system, from stochastic and constant values which allow us to test the model behaviour under specific situations.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Computer Science & Informatics
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Uncontrolled Keywords: Workflow Performance Models; Petri Nets
Publisher: Springer
ISBN: 9783540878902
ISSN: 0302-9743
Last Modified: 04 Jun 2017 03:49

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