Measuring referential integrity in distributed databases
Proceedings of the ACM first workshop on CyberInfrastructure: information management in eScience
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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 all 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.