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May 19, 2008 to May 22, 2008
ISBN: 978-0-7695-3156-4
pp: 651-656
ABSTRACT
There seems to be a general consensus on the crucial role metadata can play for enhancing the functionalities of scientific workflows systems, e.g., workflow and service discovery, composition and provenance browsing, among others. However, in most cases their management is underspecified, if not left unaddressed at all. A step in this direction, the main contribution of the work presented in this paper is an overview of metadata and their management in the Taverna workflow system. In Taverna, we consider metadata to be a first class citizen in the system, in the sense that we fully cover their life cycle from their creation, through their use and curation until their eventual removal. We present the main steps of this cycle and present the models used for metadata specification. In doing so, we distinguish two classes of metadata: metadata that describe workflow related entities, such as services, workflows and sub-workflows, and metadata that describe workflow executions, also known as workflow provenance.
INDEX TERMS
Scientific Workflows, Metadata, Semantic annotations, Taverna, Provenance
CITATION
Katy Wolstencroft, Oscar Corcho, Tom Oinn, Franck Tanoh, Alan William, Carole Goble, "Metadata Management in the Taverna Workflow System", CCGRID, 2008, Cluster Computing and the Grid, IEEE International Symposium on, Cluster Computing and the Grid, IEEE International Symposium on 2008, pp. 651-656, doi:10.1109/CCGRID.2008.17
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