A formal semantics for the Taverna 2 workflow model

Jacek Sroka, Jan Hidders, Paolo Missier, Carole Goble

    Research output: Contribution to journalArticlepeer-review

    Abstract

    This paper presents a formal semantics for the Taverna 2 scientific workflow system. Taverna 2 is a successor to Taverna, an open-source workflow system broadly adopted within the e-science community worldwide. The new version improves upon the existing model in two main ways: (i) by adding support for data pipelining, which in turns enables input streams of indefinite length to be processed efficiently; and (ii) by providing new extensibility points that make it possible to add new operators to the workflow model. Consistent with previous work by some of the authors, we use trace semantics to describe the effect of workflow computations, and we show how they can be used to describe the new features in the Taverna 2 model. © 2009 Elsevier Inc. All rights reserved.
    Original languageEnglish
    Pages (from-to)490-508
    Number of pages18
    JournalJournal of Computer and System Sciences
    Volume76
    Issue number6
    DOIs
    Publication statusPublished - 2010

    Keywords

    • Formal semantics
    • Scientific workflows
    • Taverna 2
    • Trace semantics

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