Towards a scientific workflow-oriented computational WorldWide Grid

This paper describes a potential roadmap establishing a scientific, workflow-oriented, computational World Wide Grid (WWG). In order to achieve such a WWG the paper suggests three major steps. First, create uniform metabrokers and connect existing production Grids by them in order to form the WWG infrastructure where existing production Grids become interoperable at the job submission level. Second, create workflow-oriented advance Grid portals and connect them to the meta-brokers in order to exploit workflow level Grid interoperability. Finally, create workflow Grid services and their registry and repository in order to make the workflows developed by different workflow communities interoperable and shareable.

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