Grid middleware services for virtual data discovery, composition, and integration

  • Authors:
  • Yong Zhao;Michael Wilde;Ian Foster;Jens Voeckler;Thomas Jordan;Elizabeth Quigg;James Dobson

  • Affiliations:
  • University of Chicago;Argonne National Laboratory;University of Chicago;University of Chicago;Fermi National Accelerator Laboratory;Fermi National Accelerator Laboratory;Dartmouth College

  • Venue:
  • MGC '04 Proceedings of the 2nd workshop on Middleware for grid computing
  • Year:
  • 2004

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Abstract

We describe the services, architecture and application of the GriPhyN Virtual Data System, a suite of components and services that allow users to describe virtual data products in declarative terms, discover definitions and assemble workflows based on those definitions, and execute the resulting workflows on Grid resources. We show how these middleware-level services have been applied by specific communities to manage scientific data and workflows. In particular, we highlight and introduce Chiron, a portal facility that enables the interactive use of the virtual data system. Chiron has been used within the QuarkNet education project and as an online "educator" for virtual data applications. We also present applications from functional MRI-based neuroscience research.