4.4. Summary
A grid application must carefully take into account the topology of the data that will be processed during the job execution. Data can be centralized or distributed across the execution nodes. A mixed solution is usually the most appropriate, and it highly depends on the existing infrastructure.
There are several existing and evolving technologies that can be used to manage and access data in a grid environment, and we have described a few projects that have built tools on top of Globus to provide the required capabilities for data-oriented grids.
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