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XQTav: an XQuery processor for Taverna environment.

Jacek Sroka1, Grzegorz Kaczor, Jerzy Tyszkiewicz

  • 1Warsaw University Warsaw, Poland. sroka@mimuw.edu.pl

Bioinformatics (Oxford, England)
|March 23, 2006
PubMed
Summary
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XQTav integrates XQuery (XML query language) into Taverna workbench, enabling bioinformatic workflow execution. This extension allows XQuery scripts within Taverna, offering an alternative for query-like algorithms and workflow generation.

Area of Science:

  • Bioinformatics
  • Computational Biology
  • Data Management

Background:

  • Taverna workbench is a popular platform for constructing and executing bioinformatics workflows.
  • Existing Taverna processors integrate specialized internet-based tools.
  • XQuery is a query language for XML data.

Purpose of the Study:

  • Introduce XQTav, an extension for Taverna workbench.
  • Enable full integration of the XQuery engine within Taverna.
  • Provide alternative methods for specifying and generating bioinformatic workflows.

Main Methods:

  • Developed XQTav as a Taverna extension.
  • Enabled execution of XQuery scripts within Taverna workflow diagrams.
  • Facilitated access to existing Taverna processors from XQuery scripts.

Related Experiment Videos

  • Implemented automatic generation of XQuery scripts from Taverna workflows.

    • Main Results:

    • XQTav allows seamless execution of XQuery scripts in Taverna.
    • Users can access all Taverna processors within XQuery scripts.
    • XQTav offers an alternative for query-like algorithms (filters, inner joins).
    • XQTav can automatically generate equivalent XQuery scripts from Taverna workflows.

    Conclusions:

    • XQTav enhances Taverna workbench by integrating XQuery capabilities.
    • This extension provides flexible options for creating and executing bioinformatic workflows.
    • Generated XQuery scripts can be executed independently or integrated into other environments.