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Erschienen in:
2006 | OriginalPaper | Buchkapitel
Towards a Model of Provenance and User Views in Scientific Workflows
verfasst von : Shirley Cohen, Sarah Cohen-Boulakia, Susan Davidson
Erschienen in: Data Integration in the Life Sciences
Verlag: Springer Berlin Heidelberg
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Scientific experiments are becoming increasingly large and complex, with a commensurate increase in the amount and complexity of data generated. Data, both intermediate and final results, is derived by chaining and nesting together multiple database searches and analytical tools. In many cases, the means by which the data are produced is not known, making the data difficult to interpret and the experiment impossible to reproduce. Provenance in scientific workflows is thus of paramount importance.
In this paper, we provide a formal model of provenance for scientific workflows which is general (i.e. can be used with existing workflow systems, such as Kepler, myGrid and Chimera) and sufficiently expressive to answer the provenance queries we encountered in a number of case studies. Interestingly, our model not only takes into account the chained and nested structure of scientific workflows, but allows asks for provenance at different levels of abstraction (
user views
).