Contextualised workflow execution in mygrid

Authors:
M. Nedim Alpdemir;Arijit Mukherjee;Norman W. Paton;Alvaro A. A. Fernandes;Paul Watson;Kevin Glover;Chris Greenhalgh;Tom Oinn;Hannah Tipney
Affiliations:
Department of Computer Science, University of Manchester, Manchester, United Kingdom;School of Computing Science, University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom;Department of Computer Science, University of Manchester, Manchester, United Kingdom;Department of Computer Science, University of Manchester, Manchester, United Kingdom;School of Computing Science, University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom;School of Comp. Sci. and Inf. Tech., University of Nottingham, Nottingham, UK;School of Comp. Sci. and Inf. Tech., University of Nottingham, Nottingham, UK;European Bioinformatics Institute, Hinxton, Cambridge, United Kingdom;Department of Computer Science, University of Manchester, Manchester, United Kingdom
Venue:
EGC'05 Proceedings of the 2005 European conference on Advances in Grid Computing
Year:
2005

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Abstract

e-Scientists stand to benefit from tools and environments that either hide, or help to manage, the inherent complexity involved in accessing and making concerted use of the diverse resources that might be used as part of an in silico experiment. This paper illustrates the benefits that derive from the provision of integrated access to contextual information that links the phases of a problem-solving activity, so that the steps of a solution do not happen in isolation, but rather as the components of a coherent whole. Experiences with myGrid workflow execution environment (Taverna) are presented, where an information model provides the conceptual basis for contextualisation. This information model describes key characteristics that are shared by many e-Science activities, and is used both to organise the scientist's personal data resources, and to support data sharing and capture within the myGrid environment.