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Integrating distributed Scientific Data Sources with MOCHA and XRoaster


Manuel Rodriguez-Martinez, Nick Roussopoulos, and John M. McGann

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Abstract

MOCHA is a novel middleware system for integrating distributed data sources that we have developed at the University of Maryland. MOCHA is based on the idea that the code that implements user-defined types and functions should be automatically deployed to remote sites by the middleware system itself. To this end, we have developed an XML-based framework to specify metadata about data sites, data sets, and user-defined types and functions. XRoaster is a graphical tool that we have developed to help the user create a the XML metadata elements to be used in MOCHA. This demonstration serves the purpose of showcasing the unique features of our implementations of MOCHA and XRoaster.


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